This is occurring in Visual Studio 2005, in an ASP.NET Web Application.
For example, if I try to set a breakpoint in the following code:
if (frustrated)
{
bool cry = true;
} <-- breakpoint here
It will set the breakpoint on the indicator margin, but when I actually hit F5 to debug the application, the breakpoint will flicker on and off (the little red circle literally vanishes then reappears) before disappearing altogether. Other breakpoints will work, just not ones ending on a closing bracket. This used to work, until I installed then uninstalled ReSharper (either it broke it, or its just coincidence).
EDIT: Just to reiterate - this is something that used to work, but doesn't anymore. I know I can put the breakpoint on a different line, but this is not what I want to do. I want it to work normally again.
EDIT 2: Resetting all of my settings did not help.
Any ideas?