Keyboard triggers only fire once when modifier key held down

[JohnAnson]

Sorry, Gintaras, I named the wrong key combination. I should have said ALT+Shift+arrowKey:
In WinWord 2010:
Alt+Shift+Up: moves the paragraph up one paragraph
Alt+Shift+Down: moves the paragraph down one paragraph
Alt+Shift+Left: Makes a normal paragraph a heading-1 paragraph, or decreases the heading level (eg heading-2 to heading-1)
Alt+Shift+Right: Increases the heading level (eg heading-2 to heading-3)

Tests:
1. I started word 2010 in safe mode (winword /a), the problem still occurs.
2. If I exit QM (Alt+F3) the alt+shift+arrowKey behaviour in WinWord returns to normal.
3. I have no QM macros with keyboard triggers using Alt+Shift+Arrow keys (and cannot see any for Alt+Shift+anything)