I have a 9300 that I put Vista on. When I close the lid the display will not turn off. I can see it glowing and it gets very hot.

Have you got the dell drivers installed for your video card? I know the dell drivers for xp turn the display off but any other that feature doesnt work. Im guessing the same for vista.

Yeah, I think it's probably the drivers. Custom drivers seem to have a problem using many custom features of the video card.

The Inspiron 9400/E1705 lid switch is supported under Vista natively, aka it operates separately from the NVidia driver. I would assume its the same switch from the 9300. Look under your device manager at the system devices. There should be one called ACPI Lid in there. If there isn't, something isn't right. If it is there, try removing the device from there and reboot. See if that helps.

Aside from that, your lid switch should work under Vista from your very first boot - even with the Microsoft WDM driver installed. I have used many drivers beyond the originals and none of them interfere with the lid operation...

Might suck, but try another Vista reinstall and check the lid function before you install aftermarket NVidia drivers.

Tried to uninstall and reinstall and that didn't work.

For those suggesting new drivers, where do I get them? I went to Dell and suddenly there are not Vista drivers listed for the 9300. Can I get it directly from nVidia?