I've posted this problem on the Apple forum but no solution yet: When I press the F8 key it opens the Accounts Preference Pane. I have no keyboard shortcut implemented for F8 so there is no immediate evidence as to why this is happening. I've tried resetting the PRAM and tried a different keyboard (the older 2006 style plastic model) but to no effect. If I try one of the newer aluminium keyboards the F8 key launches iTunes but launches the same Accounts Pref if I use fn+F8. Any help much appreciated. System OSX 10.6.5, Quad Core Intel Mac, 12Gb RAM.