Thanks for the reply.  I got it to work.  Unfortunately, I'm not sure I remember the steps! :-). However, I'm more familiar with the different relationships, for next time, and I'll do some research (unless you might add a quick tutorial or pointer..my brain works in terms of data flows.)

One further question(two parts):
a) I ended up with the check register entry using the account as "Undeposited Funds".  How should I have labeled the deposit when it was downloaded from the bank?  I originally used "Consulting Services Revenue" for the account.  Would it have made a difference if I had used Undeposited Funds when I first received the deposit?  Or would the payment function have found the deposit in any case?
b) I see that "Consulting Services Revenue" shows up on the P&L via the Invoice...is that how the deposit is  supposed to get into the "income" category?

Invoice

Deposit, originally downloaded from the bank, here in final form 

Payments window

Balance Sheet Entries