When your Vista's:

a) Internet Explorer stops working for no apparent reason, and then your internet turns to crap for the next approaching 1 - 3 days

or,

b) takes an uncomfortably long amount of time to log in, only to leave you with an "incorrect password" message.
Tom: Why haven't you logged in to Facebook since Monday? They did maintainance, and now it isn't a complete ripoff of Twitter! I can actually stand the UI now!

Dan: Dang vista-ruptions!
by isochronismisms! June 3, 2009
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