Yes, I've noticed the same problems. In addition to what you've mentioned, I also seem to have problems loading pages that I "never" had problems with before. Sometimes it takes several trys before they load. Initially I thought it was an ISP problem, but after reading your post, the birth of these problems started after downloading the service pack 1 upgrade. Seems my browser cannot find "common" pages at times and fails to load all images when I eventually get there (but not always).
I'm in the process of trying your "temporary" fix, that is, deleting my browser cache. Seems to be working so far (I also increased the size). Kind of scary, isn't it?? My once "flawless" browser now seems to sputter because I made a "suggested critical upgrade". . . sigh
