My Gpib card (keithley cec488 pci) is working via delphi but not via cvi. What could be the problem?

[hanan]

there are problems to work with cec488 and cvi
u must install the driver of cec488 for CVI after u install the cvi ( look in the help files or readme files of cec488 driver )

i do it in the past with (cec488 EISA) and it work but it have some probleams