[Staffslug] Ubuntu - Soo close

Hello all, Well, I've got Ubuntu 9.04 installed on a couple of machines and I was very impressed with the wireless etc, but I've just come across a little stumbling block.. It appears that my laptop is using an ATI based graphics card, and it appears that for some reason Ubuntu and ATI only seem to want to work (fully) with brand new cards. I've got a perfectly working display on the laptop, but hmm, would be nice to have the system working in harmony with the graphics card (3d etc). The other machine is running an nVidia card and works super. Has anyone else fell foul of this issue, if so have you managed to work around? Dave