Preset patch name says 'error' and is messed up

[Atlsynth]

Virus KC OS 6.5. I have a patch that is called 'error' and sounds like crap. And of course can't be over written. Should this latest OS even be on this KC? Also since you're here, I need to replace the LCD which I have already. Is there anything I should watch out for opening this up? The warranty stickers have never been broken. Any suggestions would be great. I'm assuming to reset to factory presets there's a midi file somewhere? Sorry bout all the questions, new owner. TIMO? haillllp!