
Verify that the Shift key is not pushed.

Verify the configuration of your keyboard (QWERTY, QWERTZ, AZERTY...).

Insert the Apple Install Disc 1 and restart while holding the C key. Choose your language then click the Disk Utilities in the Utilities menu. Select your startup Disk and click the Repair Disk button. When done, click the Repair Disk Permissions button. Then restart normally, relaunch OnyX and try again...