Can't run AC (Linux)

[Leoi]

I was trying to fix a error on AC (it pause for a millisecond every 3 steps making the game almost unplayable) installing some drivers and i tink i installed a wrong one (Nvidia) and when i tried to run the game the screen it went black and change the resolution of the screen, i tried unstalling those drivers and restart my pc and all went to normal but AC can't run. In the terminal show this error:

current locale: es_EC.UTF-8
init: sdl
init: net
init: world
init: video: sdl
init: video: mode
Unable to create OpenGL screen (Couldn't find matching GLX visual)

The descripicion of my video card show this:

*-display
description: VGA compatible controller
product: 82G33/G31 Express Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 10
width: 32 bits
clock: 33MHz
capabilities: msi pm vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:42 memory:fdf00000-fdf7ffff ioport:ff00(size=8) memory:d0000000-dfffffff memory:fdc00000-fdcfffff

And i use Ubuntu 10.10, btw in the "adittional drivers" shows nothing.

Please help.