Mounting Problems with 708a as firewire

I am having problems recognizing this drive from the external firewire case. Setup --> OS w2k(SP3), PC Latitude C640, IBM firewire buscard. The case is CD-509-711. My setup recognizes a Liteon LTR-52246S CD-RW drive and a Maxtor HD with no problems. I tried almost every combination of directly connecting on the firewire chain, playing with master-slave dip switch and booting. I run the self test on 708a, it was OK. I need to use this drive with the laptop. So, any suggestions…