I have a laptop, a Mac Power Book G4 with a 12 inch screen. I believe the operating system is a 10.4 something or other. Anyways my wife calls me into the bedroom to take a look. what I see is a frozen screen and I hear wild clicking noise coming from the computer...similar but much louder than the normal noise you hear when the computer is thinking. we wait a bit and finally shut the unit down. when we turn it back on it makes the same noise but continues for far too long with a "white" screen then the screen goes black for a second and back to white and then finally there is a small folder icon in the middle of the screen with a picture on it alternating between the smiley face finder icon and a question mark. I have searched the internet on my desktop to no avail. I will call apple tomorrow but I wanted to ask those here at SRP if they have had this happen and what it means and is there a way that I can fix it.

Thanks in advance