Sorry about your luck there Petr; generally speaking though USB 2.0 chipsets seem to require more power than the USB 1.1 versions, which ends up being where the difference comes in; so if you're looking at other alternatives than the ones already listed up in the Wiki, try to find one that you can either identify the actual chip on, or that doesn't "tote itself" as USB 2.0 (There are actually quite a few "10/100mbps" adapters that are USB 1.1... in reality they don't operate at 100mpbs, but then the tablet's USB interface also won't handle that level of throughput anyway...)