Hi all, I'm having a regular problem with my macbook screen. Every time I put it to sleep, when it starts back up again the screen stays blank / black. The way to remedy this issue is to close the lid and open it again immediately. Then the screen comes on and no further problems. serial; W8905MCX1AQ it's a 2008 aluminium 13" macbook with snow leopard 10.6.4 2Ghz intel core 2 duo with 4gb of ddr3 ram. Any help would be appreciated.