See
http://support.microsoft.com/?kbid=555169 "WD: Word Quits
Unexpectedly When Selecting a Document from the Windows Taskbar".
Megblue wrote:
If I minimize a file and right click on the minimized file, it often
closes, rather than opens. It doesnt do it all the time, just enough
for me to lose documents. Any ideas? Thanks for the help.