acceleport 16em ghost commands

I have an Acceleport 16em digiboard PCI with a Windows 2000 O/S latest digi driver. I have 4 9600 baud applications that request data of the server around the same time. The data requests are spaced about 10 sec apart. My application analyzer is stating that it is seeing the same command received multiple times that should be on another com port. For example, at 12:37:47 two computers (com 7 com8 )send an request and another (com 9) sends a ASCII HMyymmddhrmn request. The application states it sees the command 9 sec later and sees a HMyymmddhrmn request. Does this make any sense? I have the digiboard default config.