I have 3.1 RC installed (3.1.567.11) and I see the following annoying thing.
When I want to close all the open documents and I right click on one of the
tabs, I see "Close All" item as disabled. I have to do "Close All But This"
and then "Close".
Is it just me or do you see the same? I see that on two machines with Visual
Studio 2008 (one installation is VSTS and the second is Professional
version) with R# 3.1 RC.