configure trackpad

[CS_DBA]

All

I have a thinkpad W540 running Fedora 20, the trackpad seems to have 
sort of physical left/right buttons meaning the entire pad sort of 
'moves' when i click and it does a right click if i click on the right 
side of the trackpad (single finger click) and a left click on the left 
side.  It drives me crazy since I'm used to a single finger click doing 
a left mouse click no matter where I click and a right click if I do a 
two finger click.

The trackpad still does a right click if I use 2 fingers, how can I 
configure it to do a left click when I use a single finger no matter 
where on the trackpad I click?

Thanks in advance