I've often noticed threads where help is given on a problem then . . . silence. He didn't get it. That's what I think or maybe he got it elsewhere. Often though I believe they're too embarrassed to say, "ugh, I really still don't get it. Can you help me some more?" But I've read the rules: no help til you show your work and never work it for them. Hard, rather humilitating, to show your embarrassingly-defficient work when you barely know what's going on and maybe if you did work it for them, they'd learn how to do it and so could do others themselves. But too bad though right? I know, your forum, your rules. I have to accept them. Still though I'm left what, a little unfulfilled when I see what I think is happening. We have a math crisis in America and the phenomenon is very non-linear: Make the smallest, most subtle of changes (help them more), and maybe something catastrophic (wonderful) might happen. Discovery sometimes comes in the strangest, most unexpected of places. So I suggest we relax that rule in 2012.