Boot keys stopped working after Leopard install

I have seen others having this problem in another thread but no answers, so thought I'd give it a go.
After reading these threads finally got Leopard to install and run okay. Many thanks all. But, along the way, my boot keys stopped working. It doesn't matter what I hold down, whether 'c' or 'cmd-opt-p-r' or 'shift' or any other key combination the machine just boots straight into Leopard.
I have tried resetting the PMU (or whatever it is these days) via the internal button in desperation but still no luck.
Anyone with any ideas?

Same problem here, so I'll pull this post up. No key works.
I always have to go to the Start Drive (or whatever it's called in english) in Preferences Panes and choose the partition I wish to start directly in OSX or Windows for booting back to OSX. This is very annoying. Alt key won't show up any possible boot disk although their both internal drives.
If someone would kindly post any ideas how to change that, would be great. I've done a fresh install, with a Time Machine recovery, but this didn't seem to help.
EDIT:
I found another subjet here from november '07:
http://discussions.apple.com/thread.jspa?threadID=1224639
it seems the new Apple Keyboard is the origin of the Problem on iMac Core Duo. Apple techs said that a new firmeware should be coming before the end of 2007 (but it's february 2008 now ?!?). Any other ideas how to get this work ? I'll write on Aplpe feedback page for sure. Maybe the other boot keys aren't working because of this keyboard too.
Message was edited by: Nordlaser

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