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From Rartty........."Bad luck if the caps lock key jams as mine often does"
From Colin...........
"Oil your keyboard then" 
Reminds me of coming home one afternoon many years ago when all mice had balls

....well my mouse ball appeared to have given up the ghost

....took the ball out thinking it was clogged with dust.......NO nothing......asked my dear wife if she experienced any issues with the PC that day....... NO..... no issues, however she did admit to spraying the mouse & mouse pad with Mr Sheen..............................just to keep them clean

........... Derek