To speed up the backup of my T30 Thinkpad (only equipped with USB 1.1) to an external USB-disk I bought this 4 Port PCMCIA USB 2.0 Cardbus 5111 from ebay. I boot from CD, choose to backup my C-disk into an image file on the external disk and start the process. All works fine first, then after 10 to 15 min the laptop (and the backup) freezes and I can only push the power button to escape that situation. The same thing happened (using the same PCMCIA Adapter) on an Acer laptop of a friend. As the adapter becomes pretty warm, I suspected a thermal problem. But copying large files thru that card under Windows works fine, so the hardware seems to work despite the heat. The backup works fine using the build-in USB 1.1 ports, but of course lasts then several hours. Does anybody have an idea why the laptops freeze while running that PCMCIA to USB adapter in the TrueImage Linux environment?