Why in CUBASE 7.5 when closing the program, you receive a blue screen? My system Intel i7-2600 3.40Hz, MB ASUS P8P67 EVO,16 Gigabit 1333 memory, system : win 7 X64, CUBASE 7.5.20 x32, 1394 controller Texis instruments, Nvidia video GTX650, sound cards M-Audio Profire 610