I use two monitors for my laptop. If I launch two instances of Excel, I can
drag one instance to the other monitor and work in two spreadsheets maximized
at one time. My coworker's Excel, on the other hand, opens one instance of
Excel, and all spreadsheets open in the same instance, and are each listed in
the "Windows" menu. So the only way she can view both sheets at one time is
to spread Excel over the length of both monitors and then arrange the windows
side-by-side within the same instance. Looking at previous posts, I thought
the solution was Tools - Options - View - Windows in Taskbar. However, hers
is already checked, the same as mine. In fact, we can't find any settings
that look any different between her setup and mine. Any ideas?

TIA