Yes, a restart removed it. Sorry for the false alarm, and thanks for the reply. 
I still wonder about why it happened. OS 10.8.

Pat


On 29/08/2012, at 7:36 PM, Ronda Brown <[email protected]> wrote:

> Hi Pat,
> 
> You don't mention what OS X you are running.
> 
> Restart in Safe Mode, then Restart normally.
> <http://support.apple.com/kb/HT1564>
> 
> If that doesn't fix the problem, delete com.apple.dock.plist file
> /Users/yourusername/Library/Preferences/com.apple.dock.plist
> Then in Terminal:
> killall Dock
> 
> Cheers,
> Ronni
> 
> Sent from Ronni's iPad
> 
> On 29/08/2012, at 6:45 PM, Pat <[email protected]> wrote:
> 
>> This is really strange. I suddenly noticed an unfamiliar icon down in the 
>> left hand corner of the dock. It looks somewhat like the Pages icon, ink 
>> bottle + pen posed over the top of an orange book. The tool-tip message is 
>> that it is Finder.
>> 
>> Is this correct?  Has the Finder icon officially morphed into something 
>> else? I haven't done any updating of any software for weeks.
>> 
>> Pat
>> 
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