Research is Einstein's definition of insanity: repeatedly doing the same thing over and over and expecting different results. Yesterday, I spent nearly 7 hours waiting for that little bugger of a structure to elute on my capillary column. The first 3 times it didn't, the fourth time, it was exactly where it was predicted to be. What gives? Injector variance can only explain so much. Wall, head, my brains, all over the smashed parts of the CE.