VS2010 CTRL+M keyboard shortcut has stopped working
I have a strange problem which seems to have recently appeared. I used to be able to press the keyboard shortcut CTRL + M + O to 'collapse to definitions' in VS2010 when editing code, but it seems suddenly the CTRL + M key seems to have stopped working. When I now press the key combination I get the Open File dialogue. I have tried the obvious things like resetting the keyboard scheme in Tools > Options but this has had no effect, I did also check that the default mapping for the keys were present and no other settings were overriding it in VS2010. I have tried searching for an answer on the