have you checked if there is an updated driver version?

also i had a similar problem with xp pro... i know one of the patches that they have was supposed to fix it but since you dl-ed all of them that should have done it... i also i was reading that some brands of rw stop working after you dl service pack 1...

does it write at all? like does it burn closed sessions but not rw sessionss or is it everything doesn't work? also does it read?