Ron -

This is an intermittent problem on some machines, in some versions of
Excel.  A workaround which is often suggested is to add a couple spaces
and a period at the end of the title.  To prevent someone without this
problem seeing the period, select just the period and format it to be white.

I've never seen this on one of my charts, but a coworker showed it to me
the other day.  It was happening on a chart sheet, and only when the
zoom was between 134 and 136%.

Other oft-suggested workarounds that may or may not help: changing the
font, changing the font size, checking video drivers.  One guy even
suggested buying a new computer, although there's no assurance it
wouldn't be a problem there.

- Jon
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Jon Peltier, Microsoft Excel MVP
http://www.geocities.com/jonpeltier/Excel/index.html
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