I used to get regular failures with:
Code:
udfIntroduce($oGirlfriend,$oMother)
ERROR: [1306] Indicates two revision levels are incompatible.


Now that I've got that one sorted I'm struggling with:
Code:
udfAdjustSpending($oPartner,"Shoes",-0.5)
ERROR: [1820] A communications failure occurred during a remote procedure call.


And I'm always in trouble with
Code:
udfGetCalendarEntry("Anniversary")
ERROR: [998] Invalid access to memory location.