eMac that always boots into open firmware

[7on]

The owner told me having o type mac-boot at startup was normal...

ok...

Now it won't boot off anything but the internal hdd thus preventing the installation of Tiger.

Anyway, anyway to fix the open firmware problem? She told me she used to turn off the eMac by pressing the powerbutton (not using shutdown) so I assume that she triggered the programmer's button by holding down the powerbutton 5 seconds at startup and that messed it up

option-cmd-p-r does nothing
reset-nvram and reset-all does nothing

[Gokhan]

try reseting the pmu there should be a button look it up on apple.com for your model

[7on]

Ok, this is weird, but apparently since then and now her computer has fixed itself. Not only does the Mac-boot thing not have to be typed anymore, but her USB HDD (which frankly didn't even work on my computer) also works now.

Is there somesort of "delayed reaction" with those reset commands?