I just did a lot of messing around with it. I increased the size of my virtual memory and I used a program that moved it to the front of the hard drive. I just played it again and it froze up and then crashed to desktop with looping sounds so it might be a sound problem.
The Steam fourms don't help because some say it is your hardware and others say it is something wrong with the software and Steam refuses to fix it. I am going to see if I have the latest drivers for sound and then fiddle around with it to see if I can figure it out.