ver 7.14.03 crash

#1
before with old version i have the program on also for 3-4 days without crashes or little crashes after a long time.
now, when i have finish to open my channells (8-10, i have a 4 tuner card) i have seen that when i press the _ button
for toggle the main program from my screen, under it appear this in the picture.

why the program crash just when i press the _ button ???

thank.

Image