I have installed a 1 gig stick successfully and I am rocking and rolling. I turned it back on and everything was perfect first 2 times. WiFi worked, ram was recognized. It quit on my the third time. It went blank. No shut down process. Rebooted and it was just fine. So then I screwed back all the screws. Rebooted and now it gave me a message "Failed to initialize HAL".So what does it mean? Also WiFi stopped working after I screwed everything back in. It worked great before rescrewing. I opened it up again and none of the cables were loose. White was bottom, black was top. Nothing loose. Whats the deal with that. And if its totally shot or shorted then can I hook up a USB WiFi card?