NO SOUND
As it sits right now, it looks like you have to downgrade to XP, since Sony is not posting Vista drivers for that model. I would email their support department and ask them if you can have access to the drivers, since you have already upgraded.
If I were them, I would post the drivers, but say they won't support any upgrades, rather than not making the drivers available, unless of course sony hasn't written any drivers, which is entirely possible.
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