It's always and interesting situation when something you depend on becomes undependable. I experienced first hand a computer crash at the nightclub last night. Right in the middle of Drake - The Motto *BOOM* Windows Blue Screen Of Death. Restarted it and... nope!  Try to digital DJ with out a laptop... impossible. I am glad I had a spare laptop with me. However I had not set it up yet to work with turntables! Thanks to an emergency CD and a little perseverance I was able to finish the gig mixing with a mouse. Not the best situation, but I recovered the gig. Pays to be a little neurotic about back up gear eh?