screen death mac plus i have a very old mac k and a mac plus both of which have the same problem their screens blank out sometimes after a minor physical jolt such as inserting a floppy in the internal drive sometimes all by themselves computer left to itself just goes blank i have replaced the wires connecting the logic boards and the video board because it seemed at first that jiggling the wires made the screen come back on this worked for a while but the blanking out has returned can i do anything do i need a new power supply a new crt a new computer thanks for any advice ethan bodin tufts university ebodin pearl tufts edu
