FSL runs on my pc (2 GB RAM) using a virtual machine. In the institute we have a philips scanner 3T that gives me a philips.par/.rec file. I have trasformed these files into a nifti by dmc2nii and I created a text file containing alist of gradient directions applied during diffusion weighted volumes. Now, I correct for differences in spatial distorsion due to eddy currents and I create a brain mask. When I ran FSL for DTIFIT the software crashed and I have a message: "ERROR: TERMINATE CALLED AFTER THROWING AN INSTANCE OF "NEWMAT": INCOMPATIBLE DIMENSION EXCEPTION". Can you give me some help, please?