OK heres the issue thats been plaguing my Sony Vaio for some time. I've already replaced the drive once. This one doesn't recognize a CD or DVD what the heck so ever. nor writes. Its an optaric CD/DVD combo in a Vaio VGN-NW240F. Is this a software issue or do i have to call Sony for another Drive? When it did decide not to work, I was burning a DVD. But afterwords it just stopped working. So my question is (well second one) can I fix it without getting a new one?