Does anybody have much experience with the screen spanning hack on the iBook? The iBook's inability to span but only mirror on an external monitor seems to be used quite often as a point in various arguments (iB vs. pB & 12" vs 14") -- can an iBook pull it off? Does the hack have negative effects on the normal operation of the OS or hardware? And what does it do, exactly? Is it dangerous, disasterous, diabolical or really a good thing (that for some mysterious reason Apple has chosen to disallow their entry level machines from doing...)? Also, what sort of monitor would you "recommend" (if that's the word) a new iBook to span onto? ...Inseque!