Xp freezes when burning dvds :-(

[bobbe23]

Hi guys, some assistance would be greatly appreciated. Everytime i try to burn dvds, using nero 7, my pc locks up. If worked fine up until yesterday. I did not install any new software or hardware prior to the freezing. Help!
Windows xp sp 2 amd 4000+ x2
2gig ddr800 ram 320gig seagate hdd
Samsung 22x dvd writer
450watt psu

 

[bobbe23]

Guess ill have to repair my windows, hope it sorts the problem out