I made such a HUGE mistake when I downloaded IE 9.0 today. Although the look and feel is familiar, there are several drawbacks that have left me pulling out my hair so if you use blogger DO NOT DOWNLOAD IE 9.0.
The two issues I noticed immediately are I can't leave a comment on other people's blogs. ARRGH!, and I can't access the "Stats" page on blogger. Earlier today I fired off repeated tweets to IE and Blogger but to no avail. Adding insult to injury, I can't seem to uninstall IE 9.0 so I'm sort of stuck until this bug is fixed. Until then, I'll be using FireFox... probably not what Microsoft had intended when they launched IE 9.0.