For those who are annoyed by blinking: If you make the BT settings from XP correctly, it also does not ;-))) flashes ... Simply the hook out in "Bluetooth devices to connect ....." and the Blinking is over! Incidentally, this is even very useful: Flashing indicates the user that the PC via BT is visible to others! Just like the cell phone connections to remain "paired" devices with this setting at any time.
The error was in this case, unfortunately, once again at the keyboard (see the other reviews ...)