I've just bought an Arduino Diecimila.
Upon plugging it in Windows XP popped some bubble saying it stated it was a FT232R USB UART and then did nothing. I've tried to use the Hardware Wizard but I've no idea what it's guessed the Arduino Board to be because nothing on there suggests a microcontroller so I can't follow the steps in the Guide.
I've tried to run the blinking lights demo regardless and got this result:
Binary sketch size: 1108 bytes (of a 14336 byte maximum)
avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51
and no effect on the board.
I've even gone through the route of trying to install a device that isn't on the list and when I navigate to the FTDI folder it refuses to display any devices. It displayed a device for the other folder (AVRISP) and I installed that and that doesn't work either.