You show that there are messages, but not if the messages have any helpful info.....the message itself may tell that something is not installed.
Is acpi turned on in bios?
Is the service disabled in the OS?
The cd-rom is a warning, so I am not sure what the issue is; does it work?
Is it a burner, dvd?
Are you using recent drivers for both?
Have you updated with service packs?
If a via chipset, do you have the latest 4 in 1s?
Usually running newer drivers, etc. will FIX problems, but once in a while new ones appear that were not there in older versions, so care must be taken to back up and save data when updating, or be prepared to risk losing all!
Check the stuff above and see if anything gives more information.....