During (roughly the middle) of ripping a DVD to my hard drive it locks up my whole system. Has anyone else had this issue and what can be done to address it? PVR-350 Nvidia Geforce FX 5200 PCI (using this tv out not the pvr-350) 512 MB Ram AMD +1900 XP cpu Fedora Core 4 (using http://wilsonet.com/mythtv/index.php )