Have you checked in the configuration utility for the touchscreen?
I've got a xenarc 700TSV touch screen.
By default the drivers are set up to assume a right click if the screen is touched in one spot for more the a few seconds.
Is there anyway to either disable this "right click" action, or increase the delay to something longer?
I am finding that when using centrafuse, I am not able to hold the FastForward or Reverse buttons to scan through the media, since after a few seconds, it turns into a right click.
If you are using the Touchkit drivers, there is a button labeled Option near the bottom of the Setting tab, next to the picture of a mouse and the 'Normal Mode/Click options' button.