This has happened twice recently, only one side of a transaction will show up in GL-O.  I enter the missing transaction in GL-P, post everything, and then the next day the original missing transaction will show up!
 
This time however, somehow a one-sided entry posted originally, and now we are off by $60.20 on the balance sheet.  The original transaction was an inventory adjustment.   I ran UT-K-D and nothing changed.
 
How do I make a one-sided entry, or get rid of the one that is in there?

I kinda thought that too, but it was from an inventory adjustment, not A/P.   If I could get a workable answer to my Binary Zeroes problem http://www.istechforum.com/YaBB.pl?num=1219527102  I could try your suggestion!  Anyone???