I don't understand why the scan doesn't start when I press Start check. Is that a known issue? No matter how much I press it, even with the drive selected, it won't start scanning. Nothing happens actually. Pretty disappointing for a program called Scanner.
edit: I left it and came back an hour later and the start check button worked this time (...but had not started already, i.e. it was not a delayed start from earlier). There should be some kind of message or indication letting you know what's holding it up. Anyways, full scan continues.