Thanks for the response Malkior.
I'm using the latest TSLRCM and M4 78 Enhancement for the Droid Planet.
I'm using a Intel i5 processor, 8GB RAM @3.4 Ghrz with a NVidia GTI graphics card. A new PC costing £1,000. So it should be able to handle fog and stuff thrown up by the mines.
Anyways, I restarted 2 or 3 times, changed discs and managed to bundle through the superheated tunnel, though in my haste to get to the other side while the controls worked, I triggered a mine.
I'll be watching out for zany shader related problems from now on.
By the way, I played this game upto Dantooine on vanilla a few years back. Is there any significant added content in Peragus with TSLRCM?