First, clean the keys using a soft cloth lightly moistened with Endust For Electronics. This will, however, only clean the surface of the keys. Next, using canned air, lightly blast the areas between and behind the keys to remove any particles of dirt and dust that may have accumulated. If this does not solve the problem, more drastic measures will have to be taken by a qualified service person. Having weighted or semi-weighted keys will not solve the problem if it is environmentally caused. It's just a matter of keeping the keyboard clean, which should be done routinely, regardless of the brand.

Good Luck,

Gary

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Travlin' Easy