Terrible lag and unable to get to gameplay

[Jimmyduck23]

Hello
I have looked through over 30 pages of search results trying to find a solution for my problem, but have found myself unsuccessful. The game loads the main menu screen up fine. All the graphics are there, but the flickering of the torch lags terrible, as does mouse movement. When I click 'Start New Game' it loads for a short while, and then the intro will sometimes begin. If it does begin, the sound is perfect with no lag, but the graphics lag something terrible. Eventually, it just freezes. I've tried every screen resolution, fiddled with all sorts of combinations of quality settings, but to no avail. Also, I am running this via Steam.

I don't have a hpl file with any errors listed because the program becomes unresponsive and I just shut it down via task manager, but I'll attach the hpl file anyways, seems how all the threads I veiwed always seem to ask for it.

Computer specs:
Dell Inspiron 531
Windows Vista Home Premium (Service Pack 1) 32bit
2.00 GB RAM
NVIDIA GeForse 6150SE nForce430 graphics card (has most recent update)

Any help would be greatly appreciated and let me know if you need other information.

~Jimmy~

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Oh, also, this is a desktop, and my processor is AMD Sempron Processor LE-1250 2.20GHz