Hmmm I don't know what your problem maybe specifically, so I can take a stab in the dark - there maybe a problem with your current microsoft NET framework (whether its older version or something wrong with it) which means you may want to install the lastest microsoft NET framework - though this may not be the case, after all I'm just guessing what may be the problem as a simple troubleshoot.
Secondly this concerns your issue with JIT debugging, I did a quick search on google and found that others (with different programs) were having a common error with it. There solutions were: -
1) Open the registry (use regedit, Click Start, Run, Regedit).
Go to this key:
HKEY_CURRENT_USER\Software\Microsoft\Windows Script\Settings\JITDebug
And set it to 0.
2) Open Start>Control Panels>Internet Options: Advanced and activate (check box)
* Disable Script Debugging (Internet Explorer)
* Disable Script Debuggung (Other)
3) 1. Click Start
2. Click Run
3. Type cmd (and click ok)
4. Type drwtsn32 -i (and press enter)
This should hopefully stop JIT debugger, though your problem may lie somewhere else other then the two suggestions I made. For futher information on the JIT debugger: -
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