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my keyboard toggles thru numbers and letters for each keystroke I use, after installing firefox5. if uninstalled keyboard works fine, after re install same problem. e.g. if I type "A" repeatedly - types goes from 1,l,e,r,3,5,6 etc.

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os : window 7 home premium version: 6.1.7601 service pack1 build 7601 system: hp pavilion dv 6700 notebook pc system type: x86-based pc processor: intel core 2 duo cpu @ 1.83 ghz,

os : window 7 home premium version: 6.1.7601 service pack1 build 7601 system: hp pavilion dv 6700 notebook pc system type: x86-based pc processor: intel core 2 duo cpu @ 1.83 ghz,

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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

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Thanks. The problem was software " constant Guard", it was turned off in the firefox extensions but it still causes problem with firefox. I uninstalled the CG, the problem solved..