...webcam as being there? Since doing a system recovery from the recovery partition, my laptop no longer recognises the DVD drive and webcam as being there

I did a system recovery, reinstalled the '3 connect' (mobile broadband) software, downloaded and reinstalled my programs and then when I put in a DVD movie it spun up but wouldn't play. I checked 'device manager' and neither webcam or DVD drive show in the list.

Any suggestions ?
It's no longer under warranty and a DVD drive failiure wouldn't affect the webcam - would it ?!?