Jim,
Any progress on this problem? The same thing is happening to me. I’m trying the capture format: HD720 – Motion JPEG – 59.94fps. When capturing SD format, it records just fine, but when capturing HD it runs for 10-60sec then freezes. Like you said, the CPU usage jumps to the 80’s just before. My system is slower than yours, Pentium E2140 Dual Core Processor, 1.6GHz and 2G of RAM. Do you think more RAM could do the trick, or do I need a whole new CPU?
Andrew Tunnell