I develop web sites. IE is infamous for having to force developers in to using "workarounds" to get pages to display correctly. The problem is how Microsoft has persistently ignored open standers in the past, like CSS for example, in place attempting to enforce it's own proprietary code. Now they are finally realizing the error of their ways and they are back peddling  to conform to such open standards with new versions of Explorer.

The problem is that so much of the web has been already developed to conform to Explorer exclusively that the newer versions of Explorer need to interpret this old code too, mixed with the new code, in effect creating a slower browsing buggy internet environment.

I read somewhere that Explorer has in fact three layers of interpreter code. One for legacy web sites, the other for transitional sites (when they finally figured out they were making a mess out of the web), the last for full modern open web standards. That is why it's so slow compared to it's competition.

This problem will be with all of us for quite some time. Thanks to MS. Ever wondered why some web sites simply don't work on any other browser then IE? These web sites will ultimately have to be redeveloped to conform to the rest of the industry. A lot of work that will take more then a couple of weekends.

Add to it all the extra inherit insecurity that it brings to the table and you are simply better off using Firefox or some other true open standard compliant browser.