After having installed Microsoft Expression Studio 4 and upgraded ReSharper from 5.1.1 to 5.1.3, it ceased to work in both VS2008 and VS2010:
Basically, I can't see it in the menu anymore and it is marked as Suspended in Tools/Options/ReSharper. If I click on the Enable button, nothing happens.
Note that I can see the ReSharper icon in the menu Help/About but it’s not present in Tools/Extensions Manager.
I tried to reinstall/repair R# several times but without success.
Any idea of what could go wrong ? My O.S is Windows XP SP3 with last updates.