Problem with plextor px-750

Hello guys
I have a problem with my DVD burner.
I recently formated my HDD drive with a fresh copy of winxp pro.
I am trying to burn a dvd but the burner is not responding in the beginning of the process. The only way to stop it and eject the DVD is to restart the PC. The DVD remains blank after the restart. The burner was working fine before the format. I tried Nero, alcohol and plextools and I have the same problem
Here are my PC specs:
mb ASUS a8n-e
Athlon dual core 3200+
2gb RAM
Plextor Px-750 ata
Western digital 250gb sata

try uninstalling all other burning software other than nero, and make sure nero is up to date.