I've had this problem for a while, symptoms are different sometimes, but usually same as yours, but i notice that if i plug headphones in on the speakers they will work while speakers wont make any sound.sometimes they click before they die. everyone who reads this regularly enough know i bug the list about it once every month i d say... the problem comes and goes, cant see any relation to anything i do (plug different ports, run different sw,) another problem i have is with the monitors button going off with my 15"LCD does anyone know of a haxie that could disable that damed button? Francois