sound card failure?

[songwriter37]

I have an IBM T20 laptop that I am using SONAR 6 on. I recently had to reload Win XP SP2 and now my sound card fails to function properly for SONAR. SONAR and the sound card, Crystal Sound Fusion - on the MB, are both configured correctly but SONAR experiences audio drop out whenever I put it into record mode as well as the laptop becoming very sluggish. I've installed the latest drivers and nothing changed.
Windows has been unable to restore to a previous point so I am ready to reinstall XP again, just wanted to see if anybody had a better idea.

Thanks!

[Zylstra]

Right click "My Computer", go to Properties
Click the "Hardware" tab, then "Device Manager"

Are there any devices with a yellow ! or ? next to them?
If so, doubleclick, tell us what they say for Device Status.

You can also try this while you are there:
Click the "Driver" Tab, and click "Uninstall"
Restart the computer, and see if anything is different. You may need to reinstall the drivers after uninstalling the hardware.

[songwriter37]

Nope, no device warnings.
Already tired rolling back the driver but not the remove/reinstall yet.
Thanks for the reminder. Will give it a spin tomorrow.