I use a CAD program a lot when doing a scratch model or major conversion. I also use it in decal making. I have been using an old version of Autodesk's Autosketch.
I have just upgraded to a new computer, but it is running Vista. I went to Autodesk's site last night to check out the latest version of Autosketch (version 7), and the requirements call out XP or 2000- not a word about Vista. Does anyone know if Autosketch is compatible with Vista?