Please help PSP Video 9 crashes on startup

[be4con]

Since I had to perform a system restore for an unrelated problem PSP video 9 now crashes on startup. Immediately before I did the system restore I had upgraded to the latest version (2.25) (but hadn't actually run the program)

As soon as it tries to load into memory I get the familiar "videora has a problem and needs to close" error message

I've tried a cold install.

I've tried rolling back to a previous version (1.74) but just get the error message "PSP video 9 has a problem and needs to close"

Has anyone got any suggestions as to how I can solve this issue and get the program working again?

Thanks

[be4con]

The Event log when it crashes is as follows:

Event Type: Error
Event Source: .NET Runtime 2.0 Error Reporting
Event Category: None
Event ID: 5000
Date: 12/08/2007
Time: 13:31:31
User: N/A
Computer: BERTHA2
Description:
EventType clr20r3, P1 rkvideoconverter.exe, P2 2.25.0.0, P3 468d0b73, P4 mscorlib, P5 2.0.0.0, P6 461eee3d, P7 1a8b, P8 10, P9 system.io.filenotfoundexception, P10 NIL.

[nusakan]

Try uninstalling it and then making sure the folder doesn't exist anymore by manually deleting it. Reinstall it and see if it happens again, other wise, try reinstalling .NET 2.0.