3400: Fatal error: Segmentation Fault
Saving application data to C

i'm assuming its not being able to start the save file for some reason, but would like a bit more information if possible please. I'm running XP pro, and the license installed fine, when it boots the main window shows up, but the 3D viewpanel stays showing my desktop, then the message of that fault shows up in the message window. i have to open task manager to make them go away.
my laptop isn't a graphics machine, but i believe it meets the minimum requirements…
i have no problems with the version on my desktop, but the one i downloaded today for my laptop developed this problem.
thanks.