Interview recording - problems with one channel

Hi everyone

I'm a podcaster and I'm using Audition to edit my interviews. All was going well but in the last week things have gone awry!

Two related but different problems. I do my interviews on Skype and record with e-camm.

In the last week things haven't been working:

1. open an interview in Audition and only one track/channel shows up (me) and not my guest. I sent my audio file to a colleague who opened it in Audition and both tracks showed up and played normally.

2. open another interview in Audition and both tracks show but my audio is only there for first few seconds, then nothing.

Note: I've played these audio files in other programs e.g. QuickTime and Camtasia and both tracks/channels are there and play perfectly.

So I deleted Audition and reinstalled but still the same problem.

Has anyone come across this before and know of a solution?

Fingers crossed someone can help me.

Ciao, NKT55