Dianne,
I may not understand what you are trying to do. On what piece of equipment are you engaging a "record" switch or function after "capture"?
Are you attempting to somehow "pass through" your captured signal to a DVD recorder? If so, you might be better off connecting your VHS source directly to the DVD recorder and hitting play on the VHS and record on the DVD recorder.
Does PD6 burn to DVD? And does your laptop have a DVD burner?
If it does, once you have your VHS material captured you should simply be able to edit and then go to Create Disk and burn your DVD. That should then play on any set top DVD player.
I've been told by several techs that 1GB of RAM is just enough to run Windows Vista on and leaves not hardly anything left over to properly run applications. Some editing packages state 2GB RAM is minimum to run both Vista and their application.