I have a Dual 867 running panther. i bought myself a verbatim 52X burner that worked flawlessly (and w/o hacked drivers) in jag. when i first installed panther, the bruner wouldnt show up. i didnt worry about it, and repaired the disc and the permissions. still nothing. then i restarted again, and it worked. now it works every few start ups...any ideas what it could be?