It appears to happen when XP goes into that neat mode where it stacks all the buttons for the program under the same button on the taskbar. I haven't been able to identify when exactly that it happens, or what triggers it.
When it does though, the window appears to be off the viewable screen above and to the left. I say this because if you select Move fromt he taskbar pop up for the missing window, the cursor comes in in the extreme upper left corner of the screen.
I also have the LV root window turned off in the ini file...
Mike...
