Keyboard key issue

[W32Blaster]

I can affirm the bug.
Windows 7 64bit Ultimate N

Only while flying online, mostly DF Servers

Every now and then I loose Keybord Input within the game for certain Keys:
G --> Gear
B--> Brakes
F --> Flaps
V --> Flaps
If I 'alt tab' to any other Windows Applikation i can type the charakters F,G,B,V
Other Input like 'CRTL L' for Landing light or 'ALT L' for Position Lights are working fine!

Fokussing back on IL2 I still can´t operate Gear, Brakes or Flaps. Only restart of IL2 solves the lack of input.

Quite annoying ...