a regularly used imac at work has suddenly started to display a diskette icon on startup in os 9.0.4 i have unplugged the usb diskette drive so there is only the keyboard/mouse & network cable the process is as follows: 1. power up imac 2. screen goes dark grey for approx 1 min 3. screen goes light grey & displays a functional cursor 4. diskettte icon appears & flashes approx 3 times 5. smiley face appears on diskette 6. imac boots as normal i have opened control panel and gone to startup disk and the one highlighted is the hard disk and not the network disk the cd-rom does not work, as of yet i have not replaced it but will try that to see if that is causing the problem i will also try nortons networked from another imac any other suggestions would be realy appreciated thankyou

Zap the PRAM and reselect the hard disk in the control panel. Also, upgrade to 9.2.2. p