Are you sure your Mac isn't sleeping when you press the button?
i shut down my imac every night ie turn off the switch on my power point. every morning i turn on the switch and then my imac. so it cannot be sleeping.
sorry to say so, sidturbo, but i don't feel so alone now with this issue.
Can I ask why you do this every night, switch of the power point as well as your mac?
I shutdown my machine every night. I never leave it on unless I'm infront of it or it's downloading something. It's just an old habit from the days when I had a pre G3 powermac. It didn't have a sleep function.