ttp://board.jdownloader.org/showthread.php?t=4595 WARNING - TO TRY THIS, USE ONLY A FRESH COPY
AT YOUR JD DIRECTORY - Use "jdupdate.jar" - (Right Click - Make a Shortcut on Desktop)
AT DESKTOP - Use the Shortcut Jdupdate -(Right Click - Proprieties - Find line target - Add COMMAND at the end) - EXAMPLE - "C:\XXXXXX\jdupdate.jar" java -jar jdupdate.jar -branch NIGHTLY
COMMAND java -jar jdupdate.jar -branch NIGHTLY
TO GO BACK TO THE OLD VERSION java -jar jdupdate.jar -branch RESET