Graphical Errors

[Gremlin]

I played this game on my old system and it worked fine, without any issues. I recently reinstalled the game after upgrading to a Radeon 3870x2 and upgrading to the catalyst 8.12 drivers.

System specs: AMD 6400+
Radeon 3870x2
2.0Gb Ram


From the outset all of the game textures are bugged, even the walls, floors and ceilings with strange reflection effects on them. The glow stick and lighting effects are flickery and pices of the floor occasionally disappear?

Some screenshots of the problem:









and just to make things more interesting, when i got to the hole in the floor near the first computer you come across about 15 minutes into the game, it would not let me go down the tunnels until i had a better source of light... After much scouring and hunting I found the torch in the back room but could not pick it up...



Any help would be much appreciated...