Audio Playback Issue

Okay, I have a tascam us-144mkII interface connected to Cubase LE 5. I’ve set up all of my connections correctly, and when i play without recording it sounds great. It also lets me record audio, but when i play it back, i dont see any activity on the main mix output. It works fine for other audio files, but not when i record them. What am i doing wrong?

Deselect the monitor button on the record channel! Make sure the record channels output is routed to the master buss!