I started to write this up for the too cheap to fix thread...
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Not sure whether this should be in entropy thread, but lately my mouse left button has become balky, intermittent. For a while I have been suspicious of operating system conflicts, but a different mouse works perfectly.
Man I am cheaper than I thought.... the going price these days for a mouse is $7-$8 from all the obvious suspects. I was thinking more like $3
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OK found the exact tact switch (I think) for $0.40 from digikey.
I expect shipping cost will exceed parts cost...
I was tempted to swap left and right button switches, but nah....
[edit- I remember thinking I was getting old when I ran my first BIC ball point pen out of ink.. Now I wore out a mouse button...

/edit]
JR
It's nice to be nice.