Ok, so far I have no problem at all with the Krell, which is the one that I thought would give me a problem... The Directv doesn't respond at all to any commands... thinking that the ATEN RS232A USB-Serial adapter might not work even though Directv does specify this one as one that should... The DVDO doesn't work either... frustrating, but I'm going to try the suggestions from RemoteQuest and put in the /r option.... according to the very daunting manuals, it shouldn't be needed, but I've tried everything else, so why not.

Speaking of the DVDO VP30... I only have about half the commands... If anyone has the RS232 commands (preferably in HEX form), that would be fantastic. They really have a VERY complicated manual...