I recently had to replace the power supply unit in one of our desktops (Win 7 Professional SP1 32-bit). Everything works well after the replacement except the DVD drive. It has power (I can open the tray) and shows up in the BIOS. However it's not listed at all in Windows 7 (not in My Computer or even under Device Manager). I get error 7026 when I boot up the machine
Log Name: System
Source: Service Control Manager
Event ID: 7026
Task Category: None
Computer: Computer name
The following boot-start or system-start driver(s) failed to load:
Any ideas what's causing this and how to resolve?