Wavelab Pro9 won't start

Help! I re-installed Wavelab Pro 9 on my computer (Windows 8.1) and it wont start. e-License and every other thing is up-to-date and working. I get this error message before the program starts: “WaveLab 9_0_64 has stopped working. Windows is checking for a solution to the problem… A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available.”

Corrupted or missing preference file would be my guess.

Thanks for responding so quickly.
But what’s a “Preference File” and where do I find it.

C:\Users[UserName]\AppData\Roaming\Steinberg\WaveLab Pro 9\

Thanks much.