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I've got this problem too in recent version. Android 2.2. HTC Desire.
Playing cartridge labytint
Just start it, save it(inventar->ulozit hru), back, back (ulozit hru pred ukoncenim - > OK), start (pokracovat v predchozi), back, save, and again start and show message: "problem with cartridge"
Log:

W/System.err( 6903): java.io.EOFException
W/System.err( 6903): at java.io.DataInputStream.readByte(DataInputStream.java:129)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.restoreValue(Savegame.java:238)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.deserializeLuaClosure(Savegame.java:363)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.restoreObject(Savegame.java:285)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.restoreValue(Savegame.java:261)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.deserializeLuaTable(Savegame.java:336)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.restoreObject(Savegame.java:282)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.restoreValue(Savegame.java:261)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.deserializeLuaTable(Savegame.java:336)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.restoreObject(Savegame.java:282)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.restoreValue(Savegame.java:261)
W/System.err( 6903): at cz.matejcik.openwig.formats.Savegame.restore(Savegame.java:89)
W/System.err( 6903): at cz.matejcik.openwig.Engine.restoreGame(Engine.java:144)
W/System.err( 6903): at cz.matejcik.openwig.Engine.run(Engine.java:205)
W/System.err( 6903): at java.lang.Thread.run(Thread.java:1102)

And another problem: when pressing Home button, GPS dont turn off.