When you ask about mouse problems like this, you need to specify more context than just the distro. What we need to know here is which desktop
environment you are using.
I assume you are using Gnome or KDE, rather than gdm
in a console or one of the many fine lightweight window managers.
You may want to edit http://www.linuxquestions.org/questi...65#post1816965
to reflect your answer.
As for this Q, how long have you been using GNU/Linux?
Do you realize that the default behavior is for a single click to act like a double click does in Winders?