Depends on your hardware sometimes.
From personal experiance (last week) I found its best to use the driver disk that came with your computer and do all the driver updates, then service packs, then hotfixes and security threats.
If you built the computer yourself thats all the more reason why you should have a driver disk.
Double check all your stuff to make sure.
Whenever you buy any of the following, they usually come with driver disks
Any PCI cards
Motherboards
Videocards / AGP
Any USB devices
Any Firewire Devices
Joysticks / gamepads / steering wheels
I'm sure theres many more, but those are the most common
Just a tip, don't try installing more than one thing at a time. Reboot after you install something rather than installing multiple things then rebooting, to reduce the risk of conflicts.
I do know this - xenforo dropped the ball by not keeping the vbulletin reputation comments as a feature. The loss of the Reputation comments data when we switched to Xenforo really was the death knell for the site when it came to all the users that left. I know I missed it so much and I got way less interested in the site when that feature was gone and I run the site.
I'm on a page about incorrect corrections, and spent the better part of like two hours trying to get someone to understand that -5^2 = -25, not 25, and then that post had comments get reposted because that group is self sustaining, and that person was in turn trying to explain what I just explained to them. And I'm taking that as a victory