Apple MacBook Pro

My Apple MacBook Pro had crashed four times ! The first time I took it in to Incredible Connection, they told me that they could not help me and that I had to take it in to an Istore. In December we took it in again, they sent it in and I had to replace the hard drive, however now the apps do not open! I am really disgusted in the service of Incredible connection! I am a DJ and everytime my Mac crashes I lose income for atleast 3 weeks at a time, that is a total of 15 weeks! I have to reload all my software and music everytime and with the amount of money I spend getting everything back and the gigs I lose and of course I lose the name that I have built up! I could have bought a new Mac a very long time ago! The staff at Incredible connection only tell me that I have to bring it in and that they have never seen a Mac doing this. I believe if Mac does not do this, I have the bad one in the bunch and something should be done about that ! I do not want to send it in again as it does not get fixed and costs me more and more money!