Every time I close a window (Windows xp, Explorer 6) I get the error message ...

The Instruction At "0x027d4del" referenced memory at "00000000" The memory could not be "read", Click on OK to terminate the program.

... which I simply have to click off each time. This is a recent occurence. Everything else is normal. Could something have become corrupted? Any suggestion or remedy? Thanks all.

Change your browser!

Lots of Google results here

Thanks for replies. There's nothing wrong with I.E. 6. I don't like version 7. Have been using 6 for years but never had this problem crop up before.

One of the Google suggestions was to increase virtual memory. I did increase it to the recommended level but the problem didn't go away. More of an irritation than anything as everything else works fine.