Thanks again Znod,
I figured it out partly because of your help. You
can run Vista Upgrade Advisor (VUA) with Vista (but not with XP x64). I ran VUA and it said that I could run Aero. I uninstalled Java Runtime and it didn't help.
I finally found a posting on Vista Newgroups and tried this:
Right click desktop,
Personalize,
Windows Color and Appearence,
Appearence Settings,
Color Scheme,
I then selected Windows Aero.... Bingo it worked
I don't know why it didn't just turn on with the new video card or maybe it would have worked with the old card.. I dunno..
However, we now know that Aero will work with 512 mb.. I'm sure that it works better with 1 gb memory but in any case it works now...
