Sadly, I don't have any choice here at work and have to put up with IE. I hate it. Yes, I keep having things go askew while I'm on EP. I just have to keep going back to my profile to get the page to display correctly. Firefox is much more stable.
I"m using IE 9 and haven't had any problems at all.
Friends don't let other friends use IE. I work in a tech department and that's a real saying we use.
I use Firefox and I've noticed a few bugs too. Oftentimes, if one of my answers has a comment on it I have to refresh the page a bunch of times to view it.