By default, desktops (virtual or not) are included in a virtual screen, and you switch from one desktop to another by moving the mouse on desktop edges.

You can disable this auto-switch by going to the computer's properties; go there http://www.r2d2-software.com/VDT/Tutorial/Default/Page3-3.htm for more information

Please note that you must edit AutoRun to apply your new settings every time you log on; go there http://www.activeboard.com/forum.spark?forumID=38157&subForumID=78042&action=viewTopic&commentID=1159682&topicPage=0 and there http://www.activeboard.com/forum.spark?forumID=38157&subForumID=78042&action=viewTopic&commentID=1408717&topicPage=0 for more information

This link does not seem to have any mouse disable information

What you need is on the second page, but it is less than glaringly obvious there.

Go to Settings -) Virtual Screen ... and you will be in Virtual Screen Properties. Find the Switch area of the page, then the Mouse Switch Mode line. By default, VDT switches to the next screen on the virtual screen when the mouse pointer arrives at the edge of the current screen. There are several alternates to this behaviour.

However, your change will be effective for the current session only. To make the change permanent, either use Autorun (You will probably want to, any way.) or if you don't want to do that, go through New ... -) Creation Wizard and don't change any thing that isn't broken, but watch for the chance to change Virtual Screen settings, and make your change there.

Regards,