New skin is making scrolling slow for some members -- Help needed

[plazzman]

Hey folks,

I recently made a new skin for my forum, but some members have complained that scrolling up and down has becoming slow and labored. However this hasn't seemed to affect every member (including myself).

I am using a 1280x284 gradient repeated vertically as my background. I fear that may be it. If so, what's a good size to use as a BG gradient image?

I am also using images in my postbit, but I'm not TOO sure if that's the case.

Here is my site, any help would be more than appreciated.

www.fightlockdown.com/forum