It seems that when I click on a topic nowadays, only the original post comes up and all the successive posts are scrunched up in a sort of root system at the bottom, which means I have to click, click and click again to read all the subsequent replies...maybe I clicked the wrong icon somewhere along the way...does anyone know if there is a way to change it back?

Here is the solution:

http://www.thaivisa.com/forum/index.php?showtopic=120789

Moving this topic to forum support.