My computer is stupid

My laptop was gving me some minor internet-related issues for a short time, so I decided to back everything I had up onto my external hard drive and run system restore. Well, long story short, everything worked fine. Almost. My problem is that my computer now doesn’t acknowledge the presence of two rather critical components (I’m assuming because I don’t have the drivers installed yet, but I can’t get them to install): the ATI Mobility Radeon 9700 graphics card, and the Intel Pro wireless network card. Any ideas? I’ve tried a bunch of drivers and none work. I may have to send the thing back to the dealer for service if I can’t get it to cooperate.