I collect data from a DDE link and my spreadsheet normally, and through most
of today, calculated at its normal fast speed. I made a minor change here
and there to some spreadsheets and suddenly noticed that my worksheets are
laboring in recalculations that go on continuously (stock price real time
feed). Well, at first I thought it might have to do with the data source
itself, but now after market hours, I notice that a scroll bar I use to move
a vertical dotted line back and forth across the charts is lagging behind my
clicks.  Normally, the scroll bar actions would move the cursor
instantaneously.

I have checked all of the usual suspects... am I overlooking something
rather obvious?

I'd appreciate any suggestions on things to try to pull the calculation
performance back up to its old standard... of just a couple of hours ago!!!

My thanks in advance!  Brad