IE 7 Sucks!
Along with all the other problems that have long plagued Internet Explorer, with their newest release, one of the worst bugs I have ever seen is packaged with it. This video gives a good demonstration of what happens:
If you can’t view it, basically, IE has blocked access to SELECT boxes (commonly known as “drop-downs”), calling them “pop-ups” and then not giving you any real options to allow them.
This is an example:
Please people, download Firefox as fast as you can! 
Update
I am retracting my statement about the pop-ups on selects. Apparently the version that was doing this was the standalone version to work along side the installed version of IE6. I still think IE has much catching up to do to match the compliance of other browsers, but it’s not too bad of a browser. At least it has PNG support.