Just a tid bit.. but maybe you're right that the client should run on ANY computer since its java based, vista not being an exception. Maybe the Doc has some better advice.
If someone points out that vista is causing any issues or win7 or 8 is superior then I am able to upgrade .
It iss just a pain in the ass getting used to a new os.
One other reason for not wanting to have windows 8 is that there was an official recommendation to some users not to upgrade since there is a built in monitoring or back door type deal with it .
If I can find the information I will post it here ,but Bitcoin is about keeping private and windows 8 about making you 100% public .