Selecting an item in a combo box

[scaleman 0]

I'm quite new to AutoIt. I'm having great difficulty in creating an AutoIt script that will automate the selection of a particular item in a combo box. I've tried several methods - ControlCommand (using different types of parameter), _GUICtrlComboBox_SetCurSel, _GUICtrlComboBox_SelectString...

I'm using the AutoIt Window Info to get information about the form and its controls. I've even created a form using C# on which to test scripts.

I've been successful in using AutoIt for other tasks, but this one's got me beat!

Can anyone give me some help on this please?