sorry its taken so long to get back to you here.
how did you make out ?
im guessing this is your problem, its a direct x runtime issue.
http://www.microsoft.com/en-us/download/search.aspx?q=directx I would start by downloading and installing the latest direct x package from Microsoft.
it is needed for some games and graphic intense applications such as sonar and guitar tracks, though guitar tracks is not as graphic intense as one would think, it still needs this to run properly.
the latter guess would be, its possible you have a virus ?
I would do a scan just to rule it out, I have also seen things like this pop up because of viruses.