Laptop Problems

[wes4dbt]

I been trying to fix my daughters Toshiba XP laptop with not much sucess. The DVD/CD drive will reconize a CD but not a DVD. It say to "insert a disk". The sound system has also quit working, not even system sounds. I have ran an AVG scan on it and there is no virus.

I've check the device manager and it shows not problems.
It says these devices are working properly.
It says they are enabled.
It says I have the best driver installed.

I don't know if it's broken or needs to be reconfigured. I've went through all the troubleshooting tools that Windows and Tosihba offers.

Is there a diagnostic tool I can use to check if it's broke or there's some other problem.

Thanks for any help.