Script out of range exception

[Borvik]

When trying to print Purchasing Documents, for the first few times we get the following error:

"Unhandled script exception:
Value of range.

EXCEPTION_CLASS_SCRIPT_OUT_OF_RANGE"

After battling with GP for a number of times we can finally get it to print.

Here are the options we are giving it:

Print: Purchase Orders
Purchase Order Format: Other Form
Sort Documents By: PO Number
Print Options - Print Reference Number and FOB
Include PO Status - New
Restrictions: PO Number from 0000 to ZZZZ

Any ideas as to why this battle happens for the first attempt?