I'm using minecraft 1.2.4 and when its finished loading the world I can see my health, exp bar, food meter for only a few seconds and then the entire screen goes black.
This is what I see before the screen goes completely black:
second, run minecraft like this: open command prompt. and copy.paste this line: java -Xms512m -Xmx1024m -cp "%APPDATA%\.minecraft\bin\*" -Djava.library.path="%APPDATA%\.minecraft\bin\natives" net.minecraft.client.Minecraft
it should now run mc, and show you an crash report when it crashes. post that here, and the other technical folk can help you out good luck