Emu XL-7 & MP-7 User's Group

hi,

after weeks of waiting I finally got my XL7.
opened the box and started playing around. waaw what a sound.
BUT ... after 30 minutes of scrolling down the factory presets my XL7 
frooze! It gave the following message "ERROR!CODE=001 FATAL:BAD 
INSTRUCTION" and I couldn't do anything anymore. After that it 
wouldn't start up properly ... it immediately frooze or stopped 
playing after 5 minutes ...

What am i doing wrong? or is my machine messed up ...

greetz!