Few errors observed : Automatic Payment Program (APP)

Dear Experts,

In the APP, i m observing a few errors :

1. in proposal log, there are certain exception, the message displayed for that is "Balancing field "Business Area" in line item 002 not filled"

2. A few cases, where the i m able to clear invoices thru APP, but cannot find a cheque assigned nor can find any cheque printed thru the assigned form

3. When i click on the print option on F110 screen after payment run, there displays a message "Print job F110-20100206-32610-X1 has been scheduled", where to execute this??

4. In the variant, which is the last tab (Printout / data medium) of the F110, i m selecting a particular House Bank, so that a payment could be made by that House Bank only, but still i m observing a few invoice got cleared thru a House Bank other than the selected one.

Help help in above issue.