FF 1.5, some pages become blurry

I have only noticed this problem recently with certain sites.  Once the page 
loads, all of windows kind of blurs just a bit.  If I close FF, the blur 
disappears and everything goes back to normal.  It may have something to do 
with Java, but I haven't been able to pinpoint anything yet.

I couldn't find this issue in a knowledgebase anywhere, so I came here.  Any 
Ideas?

-Phil