Here are two posts from another source that may help..

Ok...found a solution, this really isn't so much a fix but a work-around
untill MS addresses the issue. My assumption that this problem is cuased by
a security features appears to have been correct. If you run Word with
administrator privileges (by either logging in as an Admin or by selecting
"Run As Administrator"), everything works as normal...you can highlight
text,
use the scroll bar and select the different options tabs in the options
menu.
So, the next step is to figure out why a user's access level restricts the
mouse abilites in Word. Does anyone know what the best way is to contact MS
and tell them about this?

This is the other post.. Good luck!!!

Well...now that I am able to access the add-ins option (by running Word as
Administrator), I was able to locate the culprit...and indeed it WAS
Laserfiche. I had my suspicious but an least I can now confirm it. However,
it appears the many different types of add-ins are causing this
problem...and
I have seen the same problem with both Word 07 and Word 03...so, I am not
really sure if this is a problem with Word or just a common problem shared
by many different add-ins. I have several contacts with the development
teams at Laserfiche so i will contact them and see if we can at least find a
solution for their add-in...




"joiedevivre" <joiedevivre@discussions.microsoft.com> wrote in message
news:60AA7B72-A51D-49B6-AFBA-F78E85C34A58@microsoft.com...[color=blue]
> Using Vista and Office 2007 and flying along when suddenly mouse stopped
> working. Can not open Word files from windows explorer, search or
> desktop -
> only can open files from within Word. When double click on Word file (no
> matter the version), nothing happens. If Word is already open, it will
> open
> a blank document. Then vista tries to "troubleshoot" my problem and
> provides
> no details.
>
> Mouse troubles continue when working in a Word file. Can not select
> anything within the document: tables, table row, column, cell, paragraphs
> or
> any text. Scroll bar gets locked too. I am able to click on the tabs and
> the start button.
>
> I have used external mouse and laptop touchpad and have same issues with
> both.
>
> No problems working 2007 office apps - strictly Word.
>
> Any suggestions greatly appreciated.
> Thanks![/color]