I can't stand Mandrake, and 8.1 has the
reputation to be a load of crap even amongst
passionate Mandrake-follower, but I have to
say something in it's defense here :}
That's nowhere near enough to get
satisfactory performance with either
KDE or Gnome, since X11 (due to
a bunch of facts that make it superior
to any windows graphical environment,
but also make it somewhat chubby)
will eat that almost by itself, then there's
your DesktopManager on top of it ...
that means you're swapping right from
the start ... and no RAM left for caching.
And (besides solid state disks perhaps)
no hdd, however fast it may spin, can
compensate for lack of RAM ;)
Try use something more slim than the
default as a window manager (IceWM,
blackbox, ...) and close all services you
don't need :)
Cheers,
Tink