I do not know if this is related, but this shows up in the output window:

Code:
'MasterBase 0.1.exe' (CLR v4.0.30319: MasterBase 0.1.exe): Loaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll'. Cannot find or open the PDB file.
So what and where should this file be and what the hell does it do?