Dp4 Clips Disappear, DP4 newbie Options

[luvkings4ever]

Hi. I was recording some tracks yesterday in DP4 and the newly recorded track was displayed in the track section, but when I stopped recording and rewound, the clip would dissappear! I could hear it when I played it back, it was just invisible. What happened?

My second question is: Some of my inputs do not show up in the audio monitor window so I can see levels, etc. I can see its level in the main section, and it records, but not in the monitor window. I am using a MOTU 24 I/O on a G5.