Windows 7 - Right Click Lock

I sometimes like to work the little jig saw puzzles on jigzone.com, but I have one recurring problem that really annoys me. If I accidentally click the right mouse button, it will go forward to the next page, and when returning to the puzzle, all the pieces are scrambled, and I have to start over again...or more likely, quit.

I checked the SetPoint mouse settings, thinking that I might be able to disable the right click button when playing this game, but there is no options for any kind of settings for either left or right click. In Windows mouse settings, all that I found was the option to reverse left and right click functions, but that wouldn't help me any.

I have thought about making some kind of shim, that I could place in the space between the button and the mouse case, but I was hoping that someone might have an idea of how to do this more easily via software settings somewhere?

EDIT: I'm not positive, but I found a program that appears to be able to lock the button, but I would prefer freeware, if such a critter exists:

http://pro-key-lock.software.informer.com/1.1/

Not sure if this is going to be suitable for you but I found a couple of possibilities that might disable the right click button. I found them by searching for "disable right click button on mouse". There were several more but they seemed a bit geekier and not quite as straight forward.

Disable the Right Mouse Button?

How to Disable the Mouse Right Click | eHow.com

The first one is almost perfect. Thanks.

You're very welcome.