Required CD/DVD device driver missing while installing WIndows 7

I am trying to install Windows 7 and get this error:

A required CD/DVD drive device driver is missing. If you have a driver floppy disk, CD, DVD, or USB flash drive, please insert it now.

Note: If the Windows installation media is in the CD/DVD drive, you can safely remove it for this step.

It is booting off the dvd to get this far in the install. Any ideas?

Fixed it...

I had a DVD drive connected with an ide cable which was configured as master. The main hard disk was connected with a sata cable.

I changed the DVD drive from Master to Slave with the jumper setting and Windows installed with no more problems.