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MythicFrost

macrumors 68040
Original poster
Mar 11, 2009
3,944
40
Australia
Hi,

My dad has a USB hub plugged into the back of his 30" ACD with a few items connected. It just sits at the white screen indefinitely, until I disconnect it and then I see the Apple logo straight away and it boots up.

What would cause this?
 
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