I'm having a bit of trouble with the PiP. I am setting up 2 WoWs on 1 system. I can start everything fine and get the windows positioned correctly but when I toggle which copy of wow is big and which is small. The smaller window does not display and I am left with just a hole in the big window where the smaller copy should be and I just see the desktop background. Any advice on this problem?

Example:

(The black part is where the window should be, there is actually a small strip along the top of the PiP box of the smaller window.)

Relevent code:
//-----------------------------------------------------------
// SUBROUTINE TO Position Windows for 2 boxing.
//-----------------------------------------------------------
<Command ResizeAndPosition>
<SendPC Local>
<SendWin %1%>
<SetWinSize 1280 1024>
<SetWinPos 0 0>
<SetWinRegion 0 25 400 300>
<SetForegroundWin>
<UpdateWin>
<SendWinM %2%>
<SetWinSize 400 300>
<SetWinPos 0 35>
<SetForegroundWin>
<UpdateWin>

//----------------------------------------------------------------
// TOGGLE PIP CONFIG WITH HOTKEY
//----------------------------------------------------------------
<Hotkey ScrollLockOn Oem5>
<Toggle>
<ResizeAndPosition WoW1 WoW2>
<Toggle>
<ResizeAndPosition WoW2 WoW1>