Wireless keyboard doesn't work after latest security update

Hi,
I update MacOS 10.6.7 with latest security update and my wirelles keyboard is connected, but keys not work, capslock light doesn't change. I try charge battery, then I replace new battery, but it has no effect. I connect keyboard to another Mac with Leopard system and there's no problem... There's some solution? Thanks

Try repairing permissions with Applications -> Utilities -> Disk Utility.
There select First Aid.  After that select the hard drive within Disk Utility's window.  Finally click on the button that says Repair Permissions.  A reboot may be necessary to finish the work when it is done.
Ignore any errors reported.

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