My computer at home is a bit lacking, so I want to make sure I'm getting the most out of it while I can. Generally speaking, here are the specs:

• 4GB Memory
• AMD Athlon(tm) 64 X2 Dual Core Processor 5200+ × 2
• 64-bit Ubuntu

The terminal shows me the following:

me@home:~$ uname -a
Linux home 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 20:45:39 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

me@home:~$ lspci | grep VGA
01:00.0 VGA compatible controller: ATI Technologies Inc RV380 [Radeon X600 (PCIE)]

me@home:~$ sudo lshw -C video
  *-display:0             
       description: VGA compatible controller
       product: RV380 [Radeon X600 (PCIE)]
       vendor: ATI Technologies Inc
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 00
       width: 32 bits
       clock: 33MHz
       capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
       configuration: driver=radeon latency=0
       resources: irq:44 memory:e0000000-efffffff ioport:ac00(size=256) memory:fdef0000-fdefffff memory:fdec0000-fdedffff
  *-display:1 UNCLAIMED
       description: Display controller
       product: RV380 [Radeon X600]
       vendor: ATI Technologies Inc
       physical id: 0.1
       bus info: pci@0000:01:00.1
       version: 00
       width: 32 bits
       clock: 33MHz
       capabilities: pm pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:fdee0000-fdeeffff

me@home:~$ lspci -nn | grep VGA
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV380 [Radeon X600 (PCIE)] [1002:5b62]

The additional drivers menu in System Settings shows me nothing useful and my attempt at installing ATI's Catalyst Control center (drivers that came with the video card) failed. I believe the latest version of Ubuntu at the time was 9.x.

What should I do? Install an old version of Ubuntu 9? Use some alternative driver?

UPDATE: I might try my hand at a bit from this answer next: "Installing Catalyst Manually (from AMD/ATI's site)" . From a terminal, fgl_glxgears returns *"fgl_glxgears: command not found"*. Any thoughts?