Originally Posted by 
smearcase
				 
			I get some of that on small laptop and I thought it was because I brush the touchpad or key combinations unintended.  The cursor isn't where I thought it was and I have to cut and paste and correct it.  But not on desktop too (Well I do use laptop 90% of the time so I gotta back off that theory a bit).  This mostly happens to me in Outlook I believe.  Which email service are you using?  It's the only common thread between the two different style computers.
Maybe my problem is there too (Outlook).