I would like to ask for some explanation to this annoying mouse/pointer behaviour I have been facing during times on several machines.
I do not believe it's caused by a virus or other malware, but rather by some kind of operational activation/interference of some "legal" program/service running on the machine at the same time.
So, the problem behaviour occurs quite often suddenly during typing text on e.g. Word-document, Notepad, or an open IE-window text-box, like just now happened also on this EE Ask body-box ... The text-typing pointer jumps from the on-going typing position to somewhere else inside the previously typed text on the text-box or document, and the typing is continued there at a wrong place! After a while noticing this happening, you have to clean out or mark the text there and transfer the pointer and the marked text to the right typing position continuing the typing there!
This is very annoying! Especially for users who are not so used to the computer typing, which I have some as my support clients.
Is there any explanation for this behaviour? What is activating this jump? Do it have something to do with the mouse-pointer position on the screen, text-box or document during the typing? Note, the mouse-pointer is another one, than the actual text-typing pointer, which may do the annoying jump ...
This behaviour has been seen on several Windows-, Word- and IE-versions, now on Win7, Word 2007/2010 and IE9.