We have a MacBook Pro in need of a device driver that will make a GT Ultra Express data card work. The card is made by Option. Documents here show it working on the laptop. The 4th and last AT&T person we spoke to (escalating up through the call center ranks) said that Apple provides the device driver, and that it should come with the machine. But it doesn’t. Not that we can tell. (A borrowed Sprint card works fine, for what that’s worth.) Apple’s site offers no clues we can find. Option’s wants us to enter the SNR and EMEI numbers before help moves forward, but when we do a login failure results.