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Just realised as well that reopen tab won't work, as it'll close the whole page down.
///// do you mean you got the message from IE when you tried to close the window (top-right 'X') with more than one active tab? /////
- that's exactly what I mean. When I close a page using IE, with ore than 1 tab open, it asks me if I want to close all tabs, or just the one I'm on - just in case I'm accidentally closing other tabs by accident .... shame chrome doesn't offer this :(