I bought a new small laptop for travel with Vista loaded on it, fairly highly spec’d for the size (4Gb RAM, dual core processor, 64bit etc). Mostly ran OK except for the constant UAC prompts, the weird file system but worst of all the Wifi which ran atrociously and would not connect without resetting the router… which is not doable on hotel or airport Wifi. Took it back and asked for it to be upgraded to XP which had been dead reliable on my home and other Wifi, went back and forth with it for months before I gave in and bought another small laptop with Windows 7 on it which ran flawlessly, Wifi included