hi,
Just to help others that are working on vista, i have solved my problems with increasing the memory limit :

BCDEDIT /set IncreaseUserVa 3072
(i have 3Go of physical RAM)

i'm running latest Aspect HD 5.2 b106 and CS3 3.1.1, Vista 32bits SP1 (RTM).

Previously, i had many crashs of Premiere when working with large projects.
Also, i wasn't able to render to M2T or CFHD a entire timeline. it was crashing all the time.
Now that's works!

When i minimized and maximized Premiere, i needed to wait a long time to get it back.
Now there is no longer to wait.
More memory is not enough for HD!

Hdlink still crash the first time i plug the camera, but after restarting it, it works fine.

regards,
Cedric.