Accel port 2e ISA Port Name Problem

One of your Accel port 2e ISA cards was physically removed from a Windows 2K PC. It was later re-installed, but it then defaulted to using com port numbers 5 & 6. It was not possible to rename the ports back to the desired 3 & 4 numbers using the dialog box option available when in the Windows Device Manager.
Does the card have to be set back to some type of default condition before this can be done? Please help.