Have to boot CD that I want to use

I am running both a Liteon LTR 16102B CD-RW and a Pioneer DVR- 106D on a ASUS P4P800 Deluxe motherboard using Win XP Pro.

The problem that I am having is that I have to boot the machine with whatever CD or DVD that I want to read or burn in the CD at the time of reboot in order for it to show up.

If I try to load an application that has multiple CDs (such as a game), I can never get past the first CD. When I am asked for the second CD and I put it in the drive, I get an error that the drive is unavailable. I have also noticed that I can’t place a floppy disk in a drice either. The error says “A:\ Incorrect Function”. It appears that these problems may be related.

All hard disk drives work fine.

Any suggestions?