mmm, does everything work? I mean you perceive no noticeable changes? No random program errors?

If it appears to be working it could be a fluke. It should show the particulars if there is a major problem.

If hardware manager doesn't show any red x's or yellow ! marks you should be fine with the drivers.

As for the services, fire up admin tool, and look in the services area to see if anything pops out at you as disabled..