Tiger computer card reader can't read my ultra II 1.0GB card

I have a new computer that has a multi-card reader that has a slot for a Compact Flash card (ultra II 1.0gb). The mfg tells me that the formats that are compatible with this card reader include MS/MD/SD/MMC/XD/TF. My Compact Flash cards fits into the largest slot but doesn’t get read by my system. Tech support for my computer tells me that my card is a SDCFH format, and as such, won’t work with the reader.

I’ve looked through the SanDisk website at the newer CF cards and don’t see any of the above formats listed. My computer is brand new and I can’t believe that this flash card can’t be read, nor are there apparently any others made by SanDisk that can be read.

Help? Thanks!