JUST for the sake of perfect clarity (?), here is a screen shot of my hard drive. The Library I'm working on/from is the sixth item down, that is to say the one immediately beneath the 'iStumbler' application. (Okay, to be strictly accurate, the screen shot is from my iMac, BUT it's almost identical to the layout on the PowerBook - it's just easier to muck about with screen-shots/photoshop etc on my 'big' machine). I'm not using the one under System, nor the one under Users.

Currently it has
inside its Preferences/SystemConfiguration, with today's date.

I haven't done the Wireless delete/reinstate yet - had to cook the dinner!

I shall get onto it in the morning (it's evening here in sunny London at present).

Thanks again for staying with it.