Welcome to Slackware!
It's not a distro that does anything for you--you have complete control.
I had a much longer post here with more details, but when I clicked submit, I wasn't logged in and lost it. So, I'll shorten it down but have the same info:
Get all your hardware makes/models drivers (vid card), mouse protocols, monitor Horiz. and Vert. refresh rates/frequencies (can be found in owner's manual or do a search at G4L aka www.google.com/linux
). Next, type the following as root into your terminal:
This will walk you through setting up X. If you have any problems or questions, let us know.