I tried to close my GML by right clicking on it and selecting close and a whole bunch of error boxes popped up, and then everytime I move anything on the screen it makes more error boxes. The only way to get rid of all of them is to shut down Girder. The error that is visible now is:

Access violation at address 004052A3 in module 'girder.exe'. Read of address 03020302.

oops, I tried to close that box and now there is one that says

Access violation at address 005D7DEC in module 'girder.exe'. Read of address 30303642.

I'll give you one more in case you can establish a pattern:

Access violation at address 005D7FDA in module 'girder.exe'. Read of address 043546D0.