describe specifically the problem you are encountering.
unlike windows, linux has many faces -- that is, with your red hat, you boot, then you choose a GRAPHICAL USER INTERFACE and let it be for a few months, then reboot, etc...
if you are having difficulty with kde or gnome or whatever you are using, check that you have the latest release, and then jack with it til it looks pretty and plays nice.
there is little to say... you have in your hands the best thing since slices smurfs