No ethernet controller or video controller

Hi there,

Under device manager I have question marks above the ethernet and video controllers. Both are dell ven 8086 dev 1050 and dev 2572 for the latter. I am running windows XP. Can anybody tell me where to download the freeware drivers from as I have tried the intel and dell sites and have not managed to find them due to my computer illiteracy?

thanks
Miss Desperate