[PULSEOX]

Hi: I'm not new to the game but just realized I lost my SH3 disc...so I bought the download from Steam. My problem is, I am trying to complete the Navigation exam...everytime I get to the point where I have completed all the objectives and I'm waiting for the last radio message...the game crashes to desktop and my computer turns off...when I restart I do not get any error messages re: overheating or anything...just restarts normally.

I realize this is an Old game and have been searching thru CTD posts but they all deal with crashes due to adding mods. I haven't added any mods...this is the base SH3 version. Any thoughts would be appreciated b4 I ask for a Steam refund. Thanks!