How do I turn off Tab and New Line markers in Eclipse?

I am using Adobe's ColdFusion Builder, an Eclipse-based IDE built on top of Aptana.

All of a sudden, I am getting a type of whitespace marker showing in my Eclipse Editor. I must have accidentally hit a key combination.

Here is a screen dump.

I have already tried "General > Editors > Text Editors > Show whitespace characters" and it is not this. I already have show whitespace characters turned off. If I turn it on, then the Whitespace Characters display over the top of what I am already seeing.

Can anyone tell me how this can be turned off? Most annoying.

Many Thanks

I have done this several times by accidentally hitting some keystrokes.

If you go to Windows/Preferences/General/Keys you will see all the keyboard shortcuts you have.

Mine is set to Control + . (that's a period by the way) I had to place my cursor inside the document and do it a couple of times to make it work because there is also a keyboard shortcut for Control +

On a Mac it is Cmd +.

Hope that helps.