Did I click on something I shouldn't have? Because when I scroll through a thread, the posters avatars are very large and sit in the middle of the screen. Messmaster, sorry to disrupt your Sunday morning peace and quiet,but this is driving me nuts.

Have you tried to adjust your zoomratio?
Some browsers zoom while you use the mousewheel.

if you're on a Mac it's Command 0, so I guess it might be Ctrl 0 on a PC (where 0 is zero)

Mine is also doing this!
ctrl 0 didn't do anything. Any other advice, please?

I'm glad to see I'm not the only one who noticed this. The home page is in vertical setup also.
Mine has been like this for 2 weeks now and thought it may have been my antique Vista set up.