Lots of problems with my M17x

Link to alienware laptop i got on ebay

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rt=nc&nma=true&item=220708484888&si=FnvNViAQHRUc1OLrSDcUZGQnpQI%253D&viewitem=

First problem i had was freezing when it was doing doing the initial setup.  Restarted it and then it froze at the screen were you set up the OS.  Used the Last Known Good Configuration and it started up fine.  Now it's not allowing me to connect to the internet and the Intel my Wifi Technology says there no network adapter.   Also get an error message saying no Ati graphics driver is installed.