gnome-terminal scroll position indicator invisible when left scroll is selected

[Ubfan]

Under Unity and Unity-2D gnome-terminal profiles, selecting right scroll (the default) for a gnome-terminal scroll bar position results in the little red bar on the right edge of the terminal, indicating where the scroll elevator will appear. Selecting the left scroll in the profile however, does not result in the little red tag appearing, so being invisible, it is difficult to find the position to make the scroll bar appear. Random movement of the cursor along the left window border is necessary to make the scroll elevator appear, which then may be grabbed and used normally. Still a problem in 12.04.3 and 13.10

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: gnome-terminal 3.0.1-0ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu3
Architecture: i386
Date: Mon Oct 17 11:22:25 2011
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-terminal
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubfan (ubfan1)]

This bug also affects Ubuntu 12.04 beta 2.
With all the other window controls on the left by default, the left-scrollbar should not be that unusual a choice. Since finding the left scrollbar is so difficult (scroll length is set to 2048, so the invisible red indicator is pretty small), a workaround is to simply suppress the new scroll bar, and fall back to the old one. which is always visible.