I usually only have this problem when somebody posts a large image or a long url link thingy.
In FF you can press Ctrl + or - to 'zoom' the page and Ctrl 0 to reset, don't suppose IE has this ?
Also I make sure my 'bookmarks' link scrolly window boundry on the left hand side of my browser is pushed far to the left or off. That tends to let me see large images on web pages fully.
On the other hand could it be some sort of graphics thing?
