Just posted this, near the bottom is my No.1 reason for NOT using IE.

http://forums.cnet.com/5208-6620_102-0.html?forumID=14&threadID=228671&messageID=2376288

Asside from that, IE7 is Microsofts attempt to catch-up to the likes of Firefox and others and they failed misserabaly.

Microsoft failed to account for the many Websites allready using specific code for identifying the different browsers. Which accounts for website not working in IE7.

Hope it convinces you to use something else.
(Personaly I dont trust Microsoft.)

bcr