Control-Up/Down-Arrow key combination does not work anymore

Hello,

I have a problem that occurred in the last week, not sure if it happens due to 2 security updates that came in via Mac OS X software update. I am unable to assign Control-Up-Arrow or Control-Down-Arrow anywhere in applications! Right and left arrows are working fine.

Examples:

1) in Xcode Preferences, try to assign Control-Up-Arrow to any item in the menu. It doesn't work for me, it's as if I hadn't pressed that key combo. But I am able to assign any other key, Control-Right-Arrow, for example.

2) in Logic Pro 9, I tried the same in the keyboard shortcuts dialog. Control-Left/Right-Arrow are working fine, but Control-Up/Down-arrows cannot be entered.

3) at last, I wrote my own little dummy test Cocoa application in Xcode, and I assigned Control-Up/Down-Arrow to 2 menu items in Interface Builder, and assigned some action. The action did not work when I pressed the shortcut. But it does work with Control-Left/Right-Arrow. Also clicking the menu items with the mouse works, even when configured to control-up/down-arrows.


I checked Universal Access in system settings, and mousekeys is off.

I installed these sw updates last week: Xcode 3.2.4, Security Update 2010-005 + 2010-006. Was anything changed about the key combinations?

Could anyone confirm or deny my findings? It used to work before the sw update. What could have possibly happened to Control-Up/Down-Arrows?

Thanks for any help, it's appreciated!

Message was edited by: Sven Thoennissen

Message was edited by: Sven Thoennissen