cd drive missing

to see if it is being detected. If it is not being detected check the Cables and Jumper setting. Try another Cable. Try another CD Rom Drive. If it is there go to the next step. One of these keys should get you in.

F1
F2
DEL
ESC
F10
A user will know when to press this key when they see a message similar to the below example as the computer is booting. Some older computers may also display a flashing block to indicate when to press the F1 or F2 keys.

Press to enter BIOS setup

Try pressing and holding one or more keys on the keyboard. This will cause a stuck key error, which may allow you to enter the BIOS setup.

If the CD/DVD is not showing in Device Manager follow these directions for clearing the Upper/Lower Filters

Click on Start, Run and type in 'regedt32' and press Enter
Expand the "HKEY_LOCAL_MACHINE" key by clicking the "+" next to it.
Expand the "SYSTEM" Key
Expand the "CurrentControlSet" Key
Expand the "Control" Key
Expand the "Class" Key
Look for a key containing the following string of letter and numbers: {4D36E965-E325-11CE-BFC1-08002BE10318}
High light this key by left clicking on it
On the right hand side you are looking for "UpperFilters" and "LowerFilters" under the "Name" column, once you find these Keys delete them by right clicking on them and choosing "delete" exit the registry.
Restart your PC.

If the drive is not present in the Disk Management window or if you are not able to access it, then the drive may have failed. In this window you should see all of your connected physical drives, their format, if they are healthy, and the drive letter.
Change the drive letter of the drive. Right-click on the drive in the list, and from the resulting menu select "Change Drive Letters and Paths"
Click on Change so you can change the drive letter. Click Change.
Select a new drive letter from the drop down list, preferably the one that is not normally used for this drive. EG: U:
Click Yes on the confirmation screen and you are done.

< add a bit >

True Blue's suggestions should fix the glitch.

Microsoft posted a bulletin Apr'07 on this issue which you may wish to download:

http://support.microsoft.com/kb/314060

Please post back within this thread and let us know how you fixed it.

Rick/Portland, OR