FWIW - Not the only thing that doesn't work in IE7.
It also "suspends" OE6 (on selecting OE, it comes up with a box telling you it's not on-line, you have to click to get OE to work)
and worse - I use a site which has audio monologue links - in IE6, clicking these invokes the mp3 player and plays the speech. In IE7 beta, the player loads, but not the file. (Workaround - right-click the link, download the "speech" (mp3 file) to Desktop, play from there, then delete it)
Summary - for me IE7 looks good, has some nice features but too many glitches. NOR can I report the problems - there's a hugely complex signing-in rigmarole (via NET passport - which I have, active) but even then, the message to MS errors, doesn't get through. NB - they only want feedback from North America!! (read the site)
The good news is that, unlike some disillusioned testers, when I uninstalled IE7, I got my IE6 back, in full working order!
Did a "housekeep" via Tune-up Utilities to get rid of 300+ invalid regisry entries, my system is back to its former pristine state. (WHEN will Microsoft include PROPER clean-ups in its Uninstall routines???)