>Just now I tried to remove 2 replies I received earlier today. In the replies management form I'm seeing some problems using FireFox 9.0.1:
>
>- The "Check" button is supposed to select all the replies. Currently, it does nothing.
>
>- It is still possible to select messages individually. However, the "Remove" button is also doing nothing at this time. So, I can't delete my replies.
>
>UPDATE: same problem with IE9.

Could you try to force a manual refresh of the reply page so just to make sure you have a fresh version of a javascript file. It hasn't been changed since a while but the version in the cache might have gotten corrupted.