hi installed vista ultimate in vmware to test all my apps before swicthing found that dfs doesnt work(or some of it anyway) i used to get a mapped drive H thats redirected to a dfs shared location where my documents are redirected too. when i try start>>run>\\USA\Homefolders\MD\myuser\My Docs i get some access denied error in xp everything works like charm anybody has any idea?

What error are you getting specifically? Just wondering if it is the same issue as this: http://forums.microsoft.com/TechNet/ShowPost.aspx?PostID=975627&SiteID=17 of if you are getting something separate.