Memory Leak in Excel
 

Excel2003 SP1 on WindowsXP Pro SP2; Fresh install of Windows and Office with
no other applications installed (not even AntiVirus of any sort)
Problem: When working in Excel, the computer displays slowness until a
VIrtual Memory message pops up.
An open Excel document (and this can be any document, not a specific one)
standing idle ups memory usage with no end in site. On a test computer after
8 hours with no activity at all - just an open maximized Excel document - the
document went up from some 5,000K memory usage to 748,300K. Minimizing the
document clears all the extra memory, but once it's back in focus the
count-up begins again.
This phenomenon is displayed on more than one machine. No macros, no links
to other documents/network - nothing that could maybe account for it.
Not only that, but same documents on other computers are "normal" with no
memory usage rising quickly (there is a slow rise in usage, but that seems to
be normal and causes no problems).
We are quite desperate. Any ideas/directions will be highly appreciated.
Thanks,
Ofra