The answer is simple on this.....
I hit the issue of the sound driver when upgrading from Xp to Vista a few years ago. You have to use the XP driver for the sound driver, the one on the XP driver disc from Dell or download from Dell.com. The trick to it is to install the driver when using the administrator login with your laptop.When opening the driver file, Right click your mouse, click Properties, and click login in as administrator. Load the driver and it will work like a charm. The issue of video, as mentioned somewhere else in this thread is an unfortunate one, being that Intel chose not to upgrade its support to anything beyond XP, for the Video drivers. Your laptop will work OK with the XP driver on video too, but the Aero feature and ability to write video to a DVD-rw drive will be rejected when tried. You can still burn an ISO file to a DVD, but you cant burn videos to DVD's in Windows Media Player, a minor clitch. . The DVD-rw will still play a DVD though and record everything else, but no video disks. On intital restart, you resolution on the video will lokk weird, but you can reset your screen resolution and use you laptop like before....who needs Aero anyway! There may be a third party way around this, but Windows Vista and 7, which are kissing cousins, balks at the video thing..
Also if you're upgrading from Vista to 7, the upgrade should just load the drivers from Vista and use them OK.
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