" When I uncheck View>Toolbars>Google, it is the Accessibility Toolbar that vanishes from sight, and when I uncheck View>Toolbars>Accessibility Toolbar, it is the Google toolbar that disappears from view!"
This appears to be a general problem with the ie toolbar menu. Google has a simple fix for it (worked for me!). Thanks to Walter for bringing it to my attention.
"When I right click on IE's toolbar, "Accessibility Toolbar" shows 3 times.I tried uninstalling and reinstalling, but it doesn't remove the extra 'Accessibility Toolbar' choices."
I think this problem is because the ie registration system is a bit flaky (easy to blame it on microsoft), I have encountered similar problems with other toolbars / explorer bars. There are several free /shareware utilities out there, that may help you to remove such annoyances (see the links below), you can also try editing the registry yourself (not recommended unless you know what you are doing)
Thanks to Sam for pointing this issue out.