Nokia 5800 - White menu button issue

[firebird-jpx]

Dear Sirs,

I have purchased a Nokia 5800 from e-bay and the whte button that lets you into the menu system is not working or showing any signs that i am pressing it.

I have tried replacing the LCD frame that had new circuit bits at the bottom, but no luck, I really do hope it is not PWB.

The RED and GREEN buttons work just fine.

Need some support and guidence from you the experts, PLEASE.;

Kind regards, Jonathan