I use ccleaner regularly...I recommend it as well.
I used in game default settings (Medium) for graphics and
had a reasonable framerate, according to Fraps....No launcher.exe
error....at least not for the twenty or so minutes that I was wringing
it out....Trackir 4pro worked perfectly...
Again, Thanx All
Will test more later...and report.
I'm hoping I've got this little booger....fingered out.