The power switches on the original GBA and the SP are prone to being touchy. There's a pretty simple solution to the problem though. If anyone needs to restore one, let me know and I'll explain how to repair the switch.
Prithee, what's the solution? No need to tease. (Or would you prefer to start a new thread?)
"There is much pleasure to be gained from useless knowledge." --Bertrand Russel (attributed)