I just installed Ubuntu again after about a year of not using it. Afterward I installed the restricted ATI driver (I have an ATI Mobility card.. I think it's the 3460). Now after GRUB I just get a black screen. I just booted from the CD, but I cannot figure out how to uninstall the driver from here as it's not actually booted to my desktop, just the LIVE CD. Is there any way to get back into Linux without fully reinstalling?