What do you mean by unstable? I've never had a single problem running a V2 SLI under Win2k (and WinXP) ever since both OS's have been out. They're (I have two sets) still running up to this day. Granted, only Glide and OpenGL through a mini-driver is available, but then again, legacy Glide support is the only reason to even have a V2 these days.