ATI Rage P/M Mobility - direct rendering

Hi!
I am absolute beginner in linux. I have a Dell Latitude CPx H500GT laptop, and I’ve installed openSUSE 11.1 (with KDE 4.1.3) on it. It has an ATI Rage P/M Mobility AGP 2x graphics card, and I’d like to enable direct rendering on it, because the graphic interface is a little slow in this way, and for example YouTube videos are really sluggish… Also, it would be nice to enable the desktop effects, although I guess this laptop is too old for that.

An other problem is that Suse can’t do an ACPI shut down, just halts the system. (But this is not that important for me.)

So I mainly want to enable DRI on this card.
I’ve tried Xubuntu before, but neither it worked.

Thanks in advance!