Hi Valerie,
The fat white plus sign is the normal cursor for Excel, in fact if you have something
else you can reset it by including the following line in a macro or by running it
from the intermediate window (Ctrl+G) in the Visual Basic Editor..
Application.Cursor = xlDefault
see
http://www.mvps.org/dmcritchie/excel/fillhand.htm#pointers
picture of mouse pointers as seen in my control panel, mouse, pointers
http://www.mvps.org/dmcritchie/icons/pointers.jpg
You will see pictures of cursors in you Settings, Control Panel, Mouse, Pointers(tab)
So I don't think that is the the problem. Can you provide more information
on anything else that you see when Excel "freezes"., including what you
can and what you cannot do. Do you see anything unusual on the Status Bar.
http://www.mvps.org/dmcritchie/excel/statusbar.htm