k - build 21 with DblClick on ListBox. Heres the script I used to test.

code:
Break On

$Form = CreateObject("Kixtart.Form")

$Form.Caption = "Kixforms..."
$Form.Width =230
$Form.Height = 270

$Form.PrintXY(10,5,"Double Click on Item:")
$ListBox = $Form.ListBox(,10,20,200,200)
$ListBox.FontName = "Courier New"

$ListBox.AddItem("Shawn ..... Green")
$ListBox.AddItem("Lonkero ... Orange")
$ListBox.AddItem("Kyder ..... Blue")

$ListBox.OnDblClick = "ListBox_DblClick"

$Form.Center
$Form.Show

While $Form.Visible
$=Execute($Form.DoEvents)
Loop

Exit 1

Function ListBox_DblClick

Select
Case $ListBox.ListIndex = 0
$ListBox.BackColor = &099CC99
Case $ListBox.ListIndex = 1
$ListBox.BackColor = &00099FF
Case $ListBox.ListIndex = 2
$ListBox.BackColor = &0CC9933
Case 1
EndSelect
EndFunction

-Shawn