I recently upgraded to Vista Ultimate. Following the upgrade, which, according to the installation process went fine, I lost several devices connected to an internal USB hub (the DVD drive, the camera, bluetooth, etc). Fujitsu's tech support was clueless, as one would expect from manufacturer's tech support. It turns out that running Portshutter (a security software) caused the problem but getting rid of any evidence of Portshutter before gaining control of the computer was a time consuming affair requiring a lot of registry editing. If the Portshutter devices remain in the the /Windows directory (even after an uninstall, these are still there), they overwrite the registry changes at every reboot. So, all files and registry keys must be removed before rebooting, otherwise all the effort would have been for nought. Thus, if you do intend to upgrade the T5010 to Ultimate (from Business) make sure that there is no Portshutter installed.