[wander_homer]

I don't have a Mac to try it, so would you care to explain how the hidden scrollbar works? Like when you open a dialog, do the scrollbars of its scrollable elements always appear and then slowly fade out, or do how do you know something is scrollable without trying to scroll?

[saagarjha]

Yes, scrollbars are supposed to flash when a view appears. This can sometimes not happen, or be hidden (say you open something in a tab and the code is not correctly written to handle visibility, or the more obvious case that you just didn't see it happen) but it's intended to let you know that scrollers are there.