I have just installed windows Vista Ultimate on my Acer TravelMate 5620 notebook. Everything is running great except for one thing, my cds won't play properly. Or rip correctly for that matter. I have tried ever many different ripping and media applications.

Ripping takes place at between 0.5x and 1.4x as opposed to the minimun of 16x I am used to. 

Playing cds is a nightmare because the audio is constantly starting and stopping intermittenly. I can barely go  five seconds without it stopping.

If you are going to reply to this post, it is not the hardware. Everything works perfectly fine on XP and this machine has more than enough power to handle Vista. 

I have scowered the net and found nothing. Is there anyone who can assist?