Well I never though my two year old's potty training would become so expensive until one day she decided that standing over the (closed) laptop was as good a place as any... Fortunately, everything aside from the screen seems to work. I can connect via screen sharing from an ipad so the network and graphics card are okay and can see the mouse and keyboard movements and the magsafe is in order. I logged in over ssh and the disk checks out as well. The only thing that's still not working is the screen which is completely black. I did SMC and PRAM resets to no avail. I even open the clamshell case from underneath and swabbed the screen interconnect to the logic board with isopropyl alcohol. No luck. the problem is anyway isolated to the screen so I don't dare to take the logic board out and give it a full scrubbing. This would surely cause more damage than cure. What is the probability that a replacement lcd screen would fix the problem? They cost around £50 so not much compared to a new macbook but if I spend the money I want to make sure that its likely to fix it. Is it possible that "water" damage would cause the screen to go completely black leaving everything else intact? Its a late '08 13.3" macbook model MB467LL/A.