Error starting Tuning Advisor

When I try to run the database engine tuning advisor from SQLServer2005 I get a messagebox with the following dialog:

RuntimeError!

Program: C:\Progr...

R6031

-Attempt to initialize the CRT more than once.

This indicates a bug in your application

I have read the MS KB that says the solution is to delete a registry value. I dont however have the key in the registry that the KB article refers to. (HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers)

I am missing the AppCompatFlags key. Any suggestions?

Is this the right forum for this?|||Check in HKEY_LOCAL_MACHINE as well, using the same path. I've found this flag in both.
|||The key does not exist there either. Thanks for the suggestion though.