z-vet and Yuna: if you could once let your computer run overnight, it would definitely be enough time to get this job done.
Soxin04: your post kind of surprises me. Are you sure it's the VRDB generator that's slowing down the machine? I mean, there are three options how to activate the generator: manually, when a computer is idle, and when a screensaver is running. I assume you haven't told it to run manually, so only the latter two options apply to you. And both of them shouldn't in any way interfere with your work - they're designed to be paused as soon as you start doing something.
And yes, the generation resumes where it stopped last time (of course, otherwise it would hardly ever complete)...
Thanks
Vlk