I've had my RioCar / empeg player for about 2 months and successfully flashed the unit with no problems over the serial port. I cannot seem to flash past my last update of Hijack v253. Both USB and Ethernet ports work fine, but the serial port seems to be down. I used the Empeg Logo Editor to load all of the hijack patches in the past, but now I get the following error msg:

found empeg unit: entering program mode, Error: Couldn't find product ID!

Not sure, but I think my last flash of hijack may have changed some setting that I needed to activate the serial port. I'm using WinXP.

Yes, I'm sure that both serial ports work on my computer - I can get bash prompts with my Cobalt Qube3 and TiVo.
Yes, I've rebooted both the empeg and computer.
Yes, I'me sure no other programs / devices are trying to use the serial ports at the same time.
No, I cannot get a bash prompt - nothing can talk to the empeg through the serial port now.

Can I revert to the base image using either the Ethernet or USB ports?

Thanks for you help
Rod