multi serial port card problem

Hi All, I’ve got a Moxa CP-114 4x port (RS232/RS422/RS485) card installed on a machine running SuSE 9.3. It uses the mxser kernel module version 1.8. I have tried the module which shipped with SuSE 9.3 and the one on the Moxa website with the same result. lspci lists the card. dmesg and /var/log/messages shows that the driver was installed. I cannot see any errors around it. The driver uses /dev/ttyM0 to /dev/ttyM3 for serial communication. These devices were created. #stty –a