IE 5.0, at least for me, seems to hang on each and every GIF file there is. Most Mac forum sites (AppleInsider, MacFixIt, and this one) take forever to load, and the status bar notes it's loading a GIF.
A friend said to me "Congradulations, by downloading any x.0 version you're now an official Microsoft Beta Tester!" Maybe I should have waited until 5.01 before filling my System Folder with MS junk.
I work, I play, iMac!