Mouse

First I had a logitech mx510(a red one!) for about 1 year. Then the mouse1 button was falling out (not registering the clicks). I was smashing it like hell until i realised I could change it in the shops as it was still guarantee. I was pretty satisfied of the mouse so I took the same mouse again(this time a blue one). Then now the same problem is starting to pop-up. Mouse1 does not register now and then which is quite annoying.

Anyone of you guys got or had a simular problem with a solution (:o). If its only a matter of bad production then I'll go for something new, non-logitech that is. I am looking for a mouse which is rather heavy with loads of buttons on it and it should work on a cloth pad.

Lots of questions, very little answers so far, so I would appreciate your help.