It seems a lot of gamesas games on Gog.com are giving me problems.

Examples:

Messiah --- app readjusts my laptop speaker volume every time to deafening loud levels that I must turn off the sound before starting the game. I mean what gives? Why must an app mess around with Windows sound settings?
Sacrifice --- game crashes on first start after a system boot every time. Only works when you launch game the second time
Evolva --- can't even get the game to run by itself (crashes after intro video). Requires the following trick: Must first run Sacrifice and allow it to crash as per above. Somehow that lets me play Evolva past the intro video to the main menu!
Antaeus Rising --- random crashing during crucial level moments