I'm sure you are right..infact I was thinking that a college of mine doesn't have lion but he updated aperture and he has arrows...thank you very much
my apologies for butting in but I thought this might be a Lion problem.
one more thing I nearly forgot to mention, maybe it helps:
In Lion you can use the left/right arrow keys instead of the arrow heads, they seem to work in Aperture, but not in all Applications. In Photoshop I could not use them.
Is this still bothering anyone besides me? Need help. Missing Scroll bar arrow keys!!!
In System 10.8
Go to System preferences
Personal = General
Show Scroll bars
Click on always
Retrieving data ...