Just tried beta3 on a win only machine. Selected wizard at the partition state. Ofcourse the wizard kindly informed me it had to remove all existing partitions on the disk. Contrary to popular opinion, I selected cancel, not to destroy the windows partitions. However, the same question came back, and I continued pressing cancel. After a couple of times I gave up. Guess it's a bug:)
It's kinda dangerous, people could be tempted to press ok, and then be very angry.. cu Danny