This is driving me potty! I have a new drive - Samsung SH-S223C, and lightscribe software is not recognising it, nor is the Diagnostic Utility from the Lightscrive site. The drive is otherwise operating correctly. I have a Acer M3201 desktop PC, and I have simply taken out the old drive and replaced with the Samsung. Can someone PLEASE help me?! I am trying a burn a DVD for a friends wedding video and have spent hours trying to get this sorted, ARGGH!!