What steps will reproduce the problem?
1. Log on

What is the expected output? What do you see instead?
Expected: no problems. See: an error consistently thrown up right at logon on all characters have tried this on (before bags/mail/etc. are opened).

What version of the product are you using?
r3

Do you have an error log of what happened?
wutznuw-1.0\\wutznuw.lua:131 hooksecurefunc(): ContainerFrameItemButton_OnDragStart is not a function\nwutznuw-1.0\\wutznuw.lua:131 in main chunk

Please provide any additional information below.
On all characters tested, using in conjunction with the default Blizzard bags as welll as oGlow v1.12 The error occurs once per session at logon, does not repeat during the session (bags opened, etc.).