Try VLCPLAYER. It's less demanding on you getting the OS install proper. If it works then we look at what you did about all the dell drivers.
We just bought a C610 refurb Dell laptop. Spent a lot of time adding SP2 so we could run new Office Suite but too much memory was used and it was sluggish. Stripped it all off and went back to XP SP1 as system came with. Reinstalled WINDVD and appears to have typical compatibility issues. Reading forums tells me some problems are present but I cannott determine how best to do to figure out what to fix. It locks up after playing part of DVD, screen grows funny colored and sizes change. Have to manually shut system off. Obviosuly some incompatilbity but not sure what it is. Can you suggest what data to gather to enable you to help me repair it?