I was having this problem, then finially upgraded to revision 361, but
I'm still seeing it. If I'm in my inbox, and I try to click and drag
a message over to another folder it works normally, but not while the
periodic "checking for new messages" message is at the top of the
page. I searched the trac tickets and the mailing list and didn't
find anything. Is anyone else having this problem? Is there a way to
fix it?