Getting 64-bit OS

I have for the last two days been trying to set up Windows 7 ..wow its cool at least compaired to XP... WTH i cant stay on line for some reason... I finialy got to log into steam and played Big flems for abot 4 minuites then it kicked me off... tried to log back on and it said HLDM is not avaivable at this time.. the only way I can get back online is to shutdown the whole computer,,, reboot
I also noticed I have voice sound only ... So it could be a while before I get to Play CTF....
It does however let me see and use all 4 gigs of my ram what a good deal I got when I bought this OS windows 7... I will in time get this figured out... I installed it on a new 10000rpm Raptor HD .. I might be setting up a dual boot system just so I can play HLDM... time will tell..