Macintosh Think Pascal compiler problem! Help!

Dec 23 16:03 UTC 1994

        Think Pascal for the Macintosh is giving me a major headache.
        When I comppile even the smallest, simplest program (Hello,world)
        I get a bad instruction error which crashes the computer, just
        at the point where it says linking segment 1.  What's up with that?!
        HELP!