Enter Button not working in Excel 2003?

[rwalker]

When you hit the enter button, it should jump to the cell below the one you currently have selected. Well, mine doesn't do that anymore? My tab works fine to go to the cell to the left, but enter just keeps the current cell selected. I know it isn't the Keyboard, b/c it works for every other app. What have I disabled/enabled to cause this? This happens with both the "return" enter button and the enter on the number pad. As of right now, either a mouse click or the down arrow is the only way for me to jump to the next cell. All help is greatly appreciated.

Thanks,

Reese