> To make them more convenient, since there are a lot of tabs
> on the component bar, I went into the component bar
> properties and moved some of the IBO tabs up in the order,
> so that they showed up right after the first few 'standard'
> tabs. After moving a couple of these successfully, I found
> that subsequent moves caused the moved tab to vanish
> completely!

I re-arrange my component tabs too, but I dont think I've seen
them disappear unexpectedly. The tab disappears off the
component bar when they are empty, to get them back just move
a component onto the tab using Configure Palette (under the
"Component" menu). But anyway...

> I have lost iboSearch, iboGrid, iboControls, iboBars, and
> iboMisc so far. They are still present in the list inside
> the component properties window, but the only way I have
> found to bring these component tabs back is to completely
> uninstall and reinstall C++ Builder, then completely
> reinstalling IBO. Uninstalling IBO and reinstalling did not
> seem to fix the problem: something inside C++ Builder has
> decided to hide these tabs, and insists that they stay
> hidden.

HKEY_CURRENT_USER\Software\Borland\<product>\<version>\Palette

is where this information is stored. In your case <product>
will be C++Builder and <version> will be 6.0, but the same
thing applies to Delphi as well.

AFAIK you can simply delete the entries under this registry
path and BCB/Delphi will go back to defaults.

(Dont forget to export a copy of the registry branch first,
so that you can merge it back in if my advice does not work,
it has been a long while since I tried it. :-)

--
Geoff Worboys
Telesis Computing