"Send all keyboard input to Virtual MIDI Keyboard (even when with other windows active)" is activated. This doesn't work only with 32-bit bridge on 32-bit VSTi. Because of this awkward to configure VSTi. I need to use QWERTY keyboard, without making an active window of the virtual MIDI keyboard Again, this occurs only in 64-bit version REAPER, at work with 32-bit VST using the bridge. On 64-bit VSTi all fine. In 32-bit versions of REAPER this doesn't happen, because bridge dont use. I am Sorry for my bad English=)