I have an Imac 20", Intel based that won't startup from the first time. The only thing that happens is a slow flashing white LED on the front. I've been back to my reseller because they thought it had something to do with the memory they added. But as usual the phenomenon didn't accure at the shop. Back at the office the first times everything was ok. But the day after the flashing led appeared again.
When I detach all the USB it startsup normaly (only keyboard and ups). Even when I reconnect the keyboard during startup it halts.
Does anyone has encountered the same problems?