For my clients who want to see a listing of all checks issued during a specific year by vendor, I tell them to use the Vendor Transaction report and deselect everything but "checks". The figures appear in the Original Amount column.

In the latest release of AP (the one dated in January 2005), there is a subtotal on the Original Amount column.

If this report had a feature to print the report only for those vendors with 1099 set to yes, this report would essentially be the support for the 1099 figures. (hint to Softrak)