I installed my old plexwiter on my newer computer

I installed my old plexwiter on my newer computer and the drive slows my computer down and it will not read any disks. Sometimes it will read music CD's and play them, but it will not reasd any other CD's, software CD's included. Sometimes it will not read any at all. I do have the driver. Sometimes it will freeze my computer, but if I open it and close it my computer ressumes. Also if I do this and just leave it open it will not close after a whils. Please Help.