[Lazarus] Form refuses to display properly under Ubuntu x64

[Andrew Brunner]

This error is being raised using my mouse to scroll to tabs left of
current tab.  I scroll (down) I believe inside the Tabs.

(lazarus:9726): Gtk-CRITICAL **: gtk_widget_is_ancestor: assertion
`ancestor != NULL' failed

Finally, most everything checks out working BUT the following problem:

I have nested tab controls and I'm noticing various GroupBoxes that
are set visible=false but are being displayed at runtime even though
it should not.

cbClusters_ClusterInfo.Visible=false but you can see it through the
GUI (See attachment)

This is a problem b/c the groupbox inside nested
(PageControl/TTabSheet) is part of logic that does not make sense
until GUI is put into edit mode.

Can you find the culprit w/o back-trace or errors being thrown for
this particular problem?  If not, how do we get this problem fixed?
-------------- next part --------------
A non-text attachment was scrubbed...
Name: SCS-Cluster.png
Type: image/png
Size: 20957 bytes
Desc: not available
URL: <http://lists.lazarus-ide.org/pipermail/lazarus/attachments/20100317/04f2ce3b/attachment-0004.png>