Pavilion dm4 keyboard keys don't consistently respond, especially the space bar

Key board response is inconsistent unless I deliberately press each key. Especially poor with space bar

my sense is that this is a common, sporadic problem for the pavilion series. mine has been through two help sessions and one return during which the keyboard was replaced without effect. i have no read of a real fix. mine got better though far from cured with a keyboard driver uninstall/reinstall.
i think it is a systemic issue that HP is trying to ignore since it effects much of the Pavilion line.

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    ****Click the White thumb to say thanks****
    ****Please mark Accept As Solution if it solves your problem****
    ****I don't work for HP****
    Microsoft MVP - Windows Experience

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    Aquitaine wrote:
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