I bought an Adaptec USB2 PC Card adapter for my TiBook to finally be able to take advantage of USB2 devices (OK, mostly for my shuffle). I figured that a decent brand name like Adaptec would work fine, but so far no dice. When I connect the shuffle or another USB2 flash drive, the access light on the device just flickers really fast but doesn't mount. System Profiler shows the high speed bus under my USB devices as well as 2 additional USB 1 buses. I tried it in 9.2.2 and 10.3.7 and got the same behavior. Under X, a menu item pops up in the menu bar and says the following when clicked: Unknown Vendor USB Controller Power off Card Only the last option is selectable. Other things seem to work fine - a Kensington Pocket Mouse Pro wireless mouse, a digital camera, a Wacom tablet - all USB 1 devices. I've done some searching (the web in general, Adaptec's site and on Apple's support kbase/discussions) and haven't found anything to help. Anyone have experience with this card or something similar, or any advice for getting these PC Cards to work?