My ruler for note editor is missing, is there a way to restore default visual settings?

What is your GarageBand version? Are you using GarageBand '11 or 10.0.1?

I have not seen a similar problem with GarageBand 10.0.1, but usually problems with the graphical user interface are caused by broken preferences files.

Try HangTime's "oddball probs" fix and trash the GarageBand preferences file - move com.apple.garageband.plist from the Preferences folder in your user library to the Desktop.

See the FAQ:

http://www.bulletsandbones.com/GB/GBFAQ.html#oddballprobs

(Let the page FULLY load. The link to your answer is at the top of your screen)

For GarageBand '11 the preferences are stored in ~/Library/Preferences/com.apple.garageband.plist

and for GarageBand 10.0 also in ~/Library/Containers/com.apple.garageband10/

You user library may still be hidden, as is the default:

To make it visible in Mavericks:

• Quit GarageBand .
• Select the "Home" folder icon (the little house) in the Finder's sidebar and press the key combination ⌘J to open the "view options". Enable "Show Library Folder".

To make it visible in Lion or later open a Terminal window and enter exactly as written here:

chflags nohidden ~/Library

Then open the Home folder and open the Library folder inside and navigate to Preferences.

Regards

Léonie

I have garageband 10.0.1

So your system is MacOS X 10.9.1?

In that case you need to restart your Mac after removing the preferences files. Otherwise the changes may not take. If you did not restart the mac, try again to remove.