turbo linux6.x
zh.gbk
merlin fcs

run below-the-spot test for IMF testcase 20x.
move the texteditor off the screen, no char display within the screen.

then activate the WuBi IM, input some char, move the texteditor to make no char display within the screen, try it several times, then you can get that the composited windows are off the screen.

On solaris8/sun4u, can reproduce it through another method:
run testcase below20x, move the texteditor off the screen, activate the WuBi IM, input some key sequence which counldn't lookup by WuBi's reference implement(which only include several hundreds character, so you can easy choose one such as 'aoooooooooooo' or 'czzzzzzz'), then this problem occure.

also the lookupwindows will be off the screen, but it looks like that testcase's bug.

The same phenomenon may occure by difference reason, need base team evaluate it.