My DL4 took a dump on me at our gig last Saturday. It would just shut itself off. I would step on it, switch it on and it's like the thing would say "OK, you've had enough, I'm shutting myself off". So now, if I try to use it, sometimes it will switch on and sometimes it won't. But either way, it only works for a few seconds and then shuts it's self off. Has anyone else had this problem? Is there a way to "re-boot" this thing and get back up and running properly? I've never been that crazy about the delays in this thing but I love having the quick access to the presets on stage. But this is my second one in just over a year and so help me, if this one is dead.............that's it! I'm looking elsewhere for my delays.