finish game against chess.com's computer

One of the options in chess mentor is to finish the game against the computer.  The computer program provided by chess.com LOSES to me all the time.  I am a terrible chess player, so this is NOT right.  A similar thing has happened when I have used your computer to help understand tactics puzzles that I couldnt figure out: the computer loses to me, if I play the side that is supposed to lose in the tactics puzzle.  The computer is supposed to be rated at 2000.  What the dickens is going on.  I pointed this out to one of your multi-point people on another forum, and they just said the computer was lame.  Could this be?

Anybody else have a similar expereince

I've also had disappointing results from the computer analysis.