I need a computer person

I’m on a Dell PC, running on XP with a dell keyboard.

Okay – Somehow I disabled my Home key.  It doesn’t take me to the start of the line, won’t highlight the line when I use it with the Shift Key, or take me to the top of the page when I employ the Ctrl key.

This seems to be a global issue across all programs.

If I knew what I did to disable it I could do it again to fix it, but I can’t seem to recreate it.

Help please.

Edit: Hit the “screw it” button and switched out keyboards from an empty station.  It’s someone else’s problem know.