here's the thing, when i click play on steam everything starts out normal, the initial menu comes up(the one with the NCR rager and the PLAY, OPTIONS, DATA FILES, TECH SUPPORT and EXIT options) and when i click on play the menu either dissapears or comes up again. is there anything i ca do to fix it?

When you are ready to do your own part in the diagnostic process, and provide all of the missing information you chose not to include, only then can any attempt be made to answer you.