Mmmm Marstons & Marmite
not to sure whats causing your pc to reboot with Kprobe, you could try using the search function i know a few people have had this same issue.
have you got aspi 4.60 installed? it should have got installed with kprobe. maybe uninstall kprobe then run force aspi to get 4.6 as 4.7 can give problems.
does nero cdspeed work? you can do all the test you need with that, and test to see what aspi you have using nero info tool.