Macbook Pro sound problem... sometimes....

My girlfriend has a MBP with a Bootcamp installation with windows XP on it for "windows only" programs.
Macbook Pro
15" 2.4Ghz
2GB ram
2 partition hard drive (OSX and XP)
Windows XP SP2
However, occasionally we have been having problems regarding sound. Unfortunately, I do not know when it started as most of the time the sound is always off. It would either seem to have started when I installed Bootcamp 2.1, or after I got leopard a couple of months back and installed the new drivers, upgrading from the beta.
I had tried to reinstall the drivers from 2.1, and low an behold it worked, or so I thought. I believe the problem is intermittent, so it didn't actually solve anything. It would seem that the sound always works in Mac OSX, but only occassionaly in Windows. Was thinking of trying to install older drivers, but wanting to hear from the board first.
2nd problem
When the lid is closed and windows goes into sleep or something, sometimes when the lid is opened and the sleep is deactivated, the screen will not turn back on and remains blank while the system is running.
Thanks

I got help from another forum.
You have to download the latest driver from realtek.

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