Like the subject says, I can't load single player maps on the World of Minecraft client.

If I click one then press "go", it says "Loading" and then "Reading" for a second, then it loads a new level (Raising, soiling, etc...) and in the code box it says:

java.io.EOFException: Unexpected end of ZLIB input stream

Then a lot of "at: (location)" lines, and then "Generating new level".

I posted this here b/c H4X said that others might be having these problems too. If so, PLEASE SAY SO IN THE COMMENTS and if possible describe any more details you found.

Thanks!!