In Vegas 4, capturing video, press capture button, appears to start capture and at 3 seconds in, it stops. On going back to Media Pool there is no captrured clip. It always stops at 3 seconds.

Last time this happened we had a PC expert do exhaustive check of PC inc. flashing BIOS. Problem appeared to go away.

Now, after a short while, it has come back. I have captured a whole bunch of clips OK this afternoon and then suddenly, it starts shutting down at 3 seconds and no capture.

Any suggestions welcome.