VS2010 CTRL+M keyboard shortcut has stopped working

Question

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

Answer 1

Start killing processes with Taskmgr.exe, Processes tab. You'll eventually find the one that's sucking Ctrl + M with a windows hook.

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Just to confirm, from more than one question and comment about this, it is the Microsoft Bing toolbar that causes the problem. Uninstalling it is the only known workaround right now.