New
#11
Just some info:
I bought a OEM version of "Vista 32 Ultimate sp1" and installed and activated it on my laptop. (saved me 100 euros)
My laptop broke down, so I called MS, got a nice lady on the phone and in 10 minutes she helped me re-activate it on my desktop computer.
No problem what so ever.
And I will be able to upgrade to Win 7 Ultimate.
Mind you, this is about a OEM I bought in the shop.
I don't know if the same applies to OEM preinstalled by the retailer.
So what you can do is call MS, re-activate your Vista to your 2nd computer and then later upgrade to Win 7.
You could always call MS activate service to ask them about it, then you'll know for sure.
Hope this was helpful.