>>Without IE extension UT was unusable. I don't know if anyone else experience the same plug-in problems.
>
>I use Chrome at home (Windows 7) and I have no problems with UT (And I am positive I do not have any IE extension)

I don't know, when I opened it I saw a yellow (light brown) prompt at the top for a plug-in. I installed it, but it kept coming (looks like it was coming on each refresh). Perhaps it's related with the fact I activated Notifications here?