Driver Problem

First of, u should have burned your recovery partiton onto a DVD, please always do that, u're pretty screwed now because u didnt do that.
wht OS did u install? Vista? yay i hope not! anyways best opt would be the manufacturer's site, or google or driverguide.com or full computer forums where u might see someone with same prob as u and u might see a solution not already mentioned here.
wishing u d best man, always do backups, they're painless although time consuming.