well when i restore dcc window, then ALL windows get restored, and when i maximise one other window (not dcc but channel), then dcc again becomes maximised, while in 6.16 this was not the case, dcc window (when invoked) became normal small in centre of screen while other windows (channel and such) were normaly maximised.
as for steps for reproducing... there are none, i just initiate dcc transfer
(this affects dcc get window too)