"Jerky" is the only way I can describe what I mean. If I'm scrolling down a page, it seems I can only do it in short pieces, not a continuous flow. Also, when I'm typing, the letters don't always appear immediately, but there's a lapse before they "catch up", and it takes forever to refresh a page, open saved bookmarks or even a new Google search. If I run a virus scan like CCleaner, everything is good again, but it doesn't take long before I have the same problem again.

Sounds like your graphics card or your monitor

2 minutes ago, SaintLouisBlues said:

Sounds like your graphics card or your monitor

The computer is only a month old.

7 minutes ago, giddyup said:

The computer is only a month old.

Ah well, it can't possibly be defective parts then

Just now, SaintLouisBlues said:

Ah well, it can't possibly be defective parts then

I used to get the same problem with my old laptop as well, maybe that had defective parts too.

It could also be resource contention, different processes vying for the same resource.

6 minutes ago, giddyup said:

I used to get the same problem with my old laptop as well, maybe that had defective parts too.

There certainly seems to be a common theme of something being defective

1 minute ago, chiang mai said:

It could also be resource contention, different processes vying for the same resource.

I do have several windows (around 6 or 7) open at the same time.

4 minutes ago, giddyup said:

I do have several windows (around 6 or 7) open at the same time.

 

There's your probable answer I would guess, try closing them and see what happens.

7 hours ago, giddyup said:

I do have several windows (around 6 or 7) open at the same time.

Always handy with the weather being as it is

p.s. to return to the topic (sorry for my cryptic remark......well not really) I sometimes have the same problem as regards typing,it seems to me that maybe my pc,s processor isn,t quite as quick as my fingers so I count to ten to for it to catch up and all then is good to go.

CC cleaner isn't really something that finds some nasty stuff. 

 

        What operating system and how much DDR memory have you got?

 

           Download a trial version of Kaspersky and see what it finds.

 

           Even the trial version has all features. 

 

       You can find it here: http://me.kaspersky.com/en/anti-virus-trial

 

    P.S. What browser are you using? Do you have a lot of extensions? 

5 minutes ago, lostinisaan said:

CC cleaner isn't really something that finds some nasty stuff. 

 

        What operating system and how much DDR memory have you got?

 

           Download a trial version of Kaspersky and see what it finds.

 

           Even the trial version has all features. 

 

       You can find it here: http://me.kaspersky.com/en/anti-virus-trial

 

    P.S. What browser are you using? Do you have a lot of extensions? 

Using Firefox, have plenty of memory, and as well as CCleaner I have Mcafee virus protection, only a couple of extensions.

Have you tried Google? Or when running W 10 the Microsoft Edge browser?

 

    Are you running W 10??

 

        Can't you just disable all extensions and see if the problem's gone? 

 

            I'm not really a friend of McAffee, only some of his movies, like this one: 

 

    

 

 

    

Right click in the Task Bar, open Task Manager.

 

Click on the column at the top of "CPU" to sort from high to low.

Use Options->Always on Top to keep it on top.

 

Does your jerkiness coincide with peaks in CPU utilisation? If not, try Disk.

 

 

 

44 minutes ago, Chicog said:

Right click in the Task Bar, open Task Manager.

 

Click on the column at the top of "CPU" to sort from high to low.

Use Options->Always on Top to keep it on top.

 

Does your jerkiness coincide with peaks in CPU utilisation? If not, try Disk.

 

 

 

OK thanks, will try and narrow it down.

Put Firefox in safe mode and test. Completely disable any third party anti virus + malware + ad blockers + popup blockers and test.

Had the same sort of problem twice, both time was the Graphics card...  1x Brand new... it was not something cheap back then GeForce 9600 GT graphics card...  of course the PC would not run without a graphics card so had to buy another while the brand new one [just houst old] was sent back to be checked so bought a cheaper version the 6800 GT.. 

 

Yes the 9600 GT was faulty and was replaced Free. [managed to sell it as brand new] within a year same problem with the 6800 GT...  never had GeForce before or after, never had problems with Radeon Cards

 

Maybe was my PC at the time ? had lots but always from day 1 so many years ago they were all AMD with the Radeon Graphics cards. 

 

But 1st try other things like suggested above, check all the cables are connecting correct, the card is seated correct, and clean, take out and use a rubber and a fine brush on the M/B....  or if you know a PC shop they will check it for you.. test everything on another PC to be sure.. if like me, you never have a on-board graphics on the M/B, if it is the Graphics card then you must wait [mine took 4 weeks] for your graphics cards to be sent back tested and replaced.

Try downloading Chrome or Opera as a trial and see if the same thing happens with them.  That might pin the blame on Firefox or exonerate it.

Sounds like there's a background process eating up your CPU.

Thanks for the responses. I am now using Microsoft Edge  for my browser and the problem seems to be overcome.

I'd ditch the McAfee for starters. Windows 10 has a lot of things going on in the background you can disable which will free some memory. If it's a computer you bought in Thailand you probably have a pirated version of windows on it which could have some malware, worth looking into.

40 minutes ago, Rob13 said:

I'd ditch the McAfee for starters. Windows 10 has a lot of things going on in the background you can disable which will free some memory. If it's a computer you bought in Thailand you probably have a pirated version of windows on it which could have some malware, worth looking into.

No, it's a genuine Windows 10. I am now using Microsoft Edge without having the prior problems.

The computer is 1 month old and you are asking here how to fix it? Is there no recourse from where you purchased the computer. I'd be taking it back pronto. 

1 hour ago, jmd8800 said:

The computer is 1 month old and you are asking here how to fix it? Is there no recourse from where you purchased the computer. I'd be taking it back pronto. 

Because there is nothing wrong with the computer. If you'd bothered to read the posts you'd know that it was Firefox causing problems, and that I'm now using Microsoft Edge   and no longer have the problem.

I find the same thing happens if I have a lot of tabs open in Firefox.
When I use Chrome, no problem.

Sent from my SM-G900F using Thaivisa Connect mobile app

17 minutes ago, petedk said:

I find the same thing happens if I have a lot of tabs open in Firefox.
When I use Chrome, no problem.

Sent from my SM-G900F using Thaivisa Connect mobile app
 

I'm using Microsoft Edge now without any problems.