Though I have a pretty good gaming machine, my minecraft client would unpredictably (yet frequently) lock up and I’d get a black screen of death. Having researched this, I found a solution that worked for me.
Answer was #2 here- http://getsatisfaction.com/mojang/topics/bwod_black_window_of_death
Ithiane: Making a shortcut to run the linux minecraft.jar (Yes, on windows) using the shortcut:
“C:\Program Files (x86)\Java\jre6\bin\java.exe” -Xmx512M -Xms512M -cp “C:\Program Files (x86)\Minecraft\Minecraft.jar” net.minecraft.LauncherFrame
Fixed it for me
That’s basically what I did. Hop onto minecraft.net, download the linux client (jar file), and run it with a batch file. My batch file looks like this:
java -Xmx512M -Xms512M -cp "C:\Documents and Settings\Dino\Desktop\minecraft\Minecraft.jar" net.minecraft.LauncherFrame pause