You might wanna see what's wrong then.  I'm averaging 70.2Mh/s with two NVidia 9800 GT cards, and am getting $0.33BTC or $2.39USD a day (at the current rate).

Luckily I'm in it for the pure fun of it, and could care less about profits, margins, etc....  But either way, you should be doing better than .05BTC a day....

cent