I continually get this error when my iMac boots up. I just reinstalled OS 10.3.9 and there used to be another OS in this system (not sure which operating system it was). Anyhow, whenever start up my iMac I get this blinking globe and then a blinking folder that blinks a question mark and the MAC face and then goes to the Apple screen and goes into the operating system. Everything is all right with the iMac but I just would like to know what that blinking folder is all about and if there is a way to prevent it.