Noob question - Programs load no sound

Hi

Just got the 500 yesterday, slowly understanding the workflow and more or less understanding its potential. One thing is annoying me though that I just cant figure out. I can load individual samples to pads and they play no problem. However the program that I made in MPC maid loads but no sound. These are the same samples I can load individually so its not a question of file format. In the program menu I am able to see the samples in the pad but no sound.

Im sure its something really obvious that i dont know being a noob n all, but anyone out there know the answer to my question?

Names of the samples are also the same when importing them through MPC Maid? Are you sure the volume for the samples in your program is up? When you import your samples through MPC Maid, do the samples make any sound in Sample Edit mode?