Video recordings being broken up into one second chunks

[pvignola]

Most of the time my video records they way that it should.  I have my FPS set to 10 and I am using a DivX codec to record.  My setup is:

One color wireless one B&W wireless AHP with iWatchout with a VA12. 

I have been able to record up to 5 minutes of video in the past.  Now at times the system will only record for a minute or two then it will create a series of .avi files that are basically one second videos.  This doesn't always happen at times it will record the video without breaking it into chunks.  It doesn't seem to matter if I keep the recording on one cam or switch between cams there isn't any rhyme or reason that I can figure out.