SSmith,

I took a look at your dxdiag.txt file, thank you, and all seems normal. I am going to run through the same input files using the same version of the beta you are using. There is a more recent version of the package available and that may help but I will test both versions on one of our XP machines here and see if I can replicate the RT variances you are seeing. Fair to assume you did not change the resolution/style files in any way on the samples?

Blair