CTRL Spacebar no longer works

Hi guys,

I have a long history working with Excel and I have always relied on the keyboard shortcuts to zip through my heavy spreadsheet work.

For some reason that I cannot fathom, the keyboard shortcut for highlight column, CTRL-Spacebar, no longer works. The shortcut for highlight row (SHIFT-Spacebar) works just fine.

I have trawled the web for answers to my queries and the closest "I Don't Know" answer is here:

http://groups.google.com.my/group/mi...f93f8e43915e66

I have tried using the CTRL-Spacebar shortcut in safe mode but it is still not functioning.

Do any of you know of any reasons why this should be happening? The closest answer I can think of is that another program is intercepting the CTRL-Spacebar keystrokes. However, I can't remember installing anything recently other than XP Service Pack 3.

All help is definitely appreciated!

PS: My Excel version is 2003