Hi, i have a problem with my colorpass 7500, sometimes the display appears to be frozen and buttons don't response,i have to remove the memories and clean the contacts...it works for a short time....i already re-install the System software and it works for a shot time too, i think maybe changing the two hard drives it must be work or one of the rams must be wrong and need to be replaced...ANY IDEA? THANKS A LOT..........
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