Can't run any blitz program

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Error messages are:
Runtime Error!
Program: C:\Blitz\name_of_any_program_I_want_to_run.exe

abnormal termination
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I did actually install windows after changing the mobo, since it wouldn't boot the original winxp anymore.
I also istalled the software belonging to the mobo.
Could it have to do with the fact, that I installed it as a second windows, because I didn't want to risk
deleting any files that shouldn't by accident?
I will trie with another harddrive, with another OS on it and see.