hi - I have beagle 480 and also the power-480 analyzer. I am working on a usb problem where the test is set up to run for a long time. If something fails, the test will halt. With the regular 480, I can run in circular mode, but if the test stops and I'm not around, the "useful" part of the "failure" will be overwritten with NAKs if I don't get to it soon enough. With the power-480, there is an option to off-load to the analysis PC, but evidently only to the RAM and not the hard-drive, so once the RAM is filled up, the trace will stop. I think if I could filter out NAKs, this might work, or if I could have the analyzer trigger after no-data for say 5 minutes, that would work as well. I haven't been able to get this to work and I'm curious if anyone has come up with a way to do this. I've been in touch with totalphase, but I don't see a solution in sight. Thanks for any suggestions!