When I try to plug 6 FTDI dual USB-to-serial devices into my VCX board I get the message Error: Device not loaded - max device attached (10). What caused this message? These are direct drive serial devices so they don't use regular COM: base resources. We are trying to get at least 11 USB-to-serial devices to enumerate but apparently, even though they are not COM: based, we are stuck to only 10. Can this be changed at all?