I started using Screenshot Captor thru its menu bar and was getting the long delay after clicking the active window capture button. Then I switched to the <ALT> <PRTSCN> keystroke combination and got 'instant' capture! Horray.
That was yesterday. Today no matter what I've tried, there's an ~4sec delay, first a black border then a white border then the shutter sound.
I've tried setting and unsetting the capture delay and have searched HELP and this forum and, so far, have not found out what I'm doing differently today compared with yesterday.
I really detest the long delay when trying to capture Electricsheep!
Y'r [new] ol' Bud,