When I open the breakpoint window in Visual Studio 2012, I start to see a lot of hang time - we're talking 30+ seconds to load the entire thing, 6+ seconds between clicking a single break point and seeing it become selected.
The biggest problem is I cannot delete break points, not even one at a time - VS just goes completely unresponsive. I've gone as far as giving it 10 minutes to think about it, but that didn't work.
I suspect the problem is I have too many breakpoints left over from previous sessions - but like I said, I can't delete them. Is there another way to delete those?
I've figured it out - deleting the .suo file for the affected solution(s) will clear all break points, as well as other solution-specific options (such as what files you had open). Use this as an alternative if you can't select and delete any or all breakpoints from the Breakpoint window.