Graphics errors - first scene

[mike]

I'm also getting Graphical Errors there of the same type.

There are also errors later on in the game

Running Vista Ultimate 32 bit, 1gb RAM, x1600 Pro and an Athlon 64 3400+

Spoiler below!

When you have entered the base, a little way in, you lift the rocks out of the box and move the box to enter a trapdoor.

Further down these passages there is a room with a fence and a padlocked gate, containing lighter fluid and batteries in a chest.

The fence and gate are invisible, in the same way that map is.