> > Symptoms: > > > > Put the system to sleep using the top left apple menu. > > > > Subsequently hit a key to wake up the system. Screen display comes > back, > > but the keys and mouse are no longer being read by the computer. The > > only solution appears to be shutting down the system. However, if the > > restart is not done with the shift key held down it appears that the > > system hangs during reboot and never comes to life. > > Following the safe reboot I can reboot the system and everything comes > > up as expected. > > > > > > What I've tried (shots in the dark) > > 1. Repairing permissions > > 2. Booting from a different hard drive and running disk warrior > > > > Characteristics: > > > > 10.4.8 > > G4 867 dual, with 2G ram and 250G HD > > > > Screen energy saver set to: > > Display sleeps after 10 min > > Computer sleeps after 20 min. > > Frequently I find these do not take effect. > > > > > > Does anyone have any suggestions regarding a possible cause? > > > Do you have any PCI-USB card or s.e. installed? > > Jo Hissel There are no additional cards in the machine. Apologies but what is "s.e."? Thx. RB