No Sound...

[REDRUM]

Just about every day this week, when I start up the latop, there is no sound. I have to do a system restore to get it back.
What is causing this and how can it be stopped?

I'm running 64bit Vista

 

[COPPERHEAD85]

Half the Windows updates cause mine to go out.
Comes back after a shut down-restart thou.

 

[REDRUM]

Yes, after windows updates. Glad it's not just me.
I'll try the restart next time. It didn't do it today.


Thanks