On rare occasions Excel 2003 (with all updates) screws up and will display
just one sheet with impossibly tiny text - like only one or two pels high on
the screen.  All other sheets continue to look normal. All the cells appear
to still have correct information in them, it's just tiny.

I can select the entire sheet and tell it to use 100 point type and it will
produce type that looks like maybe 10 point type on the other sheets.  Or I
can copy an entire good sheet, and "Paste Special" only the formats onto the
bad sheet and get back the impossibly tiny text again.  Saving and reloading
the workbook doesn't help any.

To the best I can tell, this rare occurrence only happens when I've been
running VBA for an hour or so at the same time that the computer is doing
other things in the foreground.  Excel will continue to look fine until the
VBA stops and kicks back to Excel, whereupon Excel displays the tiny text.

Does this sound familiar to anyone?  Any suggestions?

Thanks.

Bill