so we did a work around--not necessarily accurate but does not change any of the numbers.

I clicked into  Line 3b and determined what those deductions were.  Then on the lines below that are available for input, I listed those items (ie health savings account, se tax etc) and input the dollar amount as a negative which created a zero balance on line 3b.  Then I went above to Line 3a(5) Other and on the open lines b and c and I listed those same items and their dollar amounts.   So essentially on the Form 1116 line 3b is zero and Line 3a includes the 3b amounts.  Hope this helps...I am in the same boat you are.   Goodluck.