Adding buttons to a Grid's toolbar causes issues when grid is inside a vertical panel about gwt-ext HOT 5 CLOSED

Unable to reproduce. I ran your sample and the buttons on the toolbar display 
fine.
What OS / Browser version are you using? And are you certain that you're seeing 
an
issue with the above test case? If so, compile using 'pretty' or 'detained' 
mode and
zip up the generated html / js files.

Ignore my previous comment. I am able to see the problem. I'll investigate.

The behaviour you're seeing is due to IE rendering issues when you have table's
within tables. (VerticalPanel gets rendered as a table). In your example if you 
add
the Grid directly to the RootPanel / document body like 
RootPanel.get().add(grid),
the toolbar displays fine.

To work around the problem, do not display the Grid's header panel until you've 
added
the toolbar.

//do not display header panel initially
ExtElement headerPanel = view.getHeaderPanel(*false*);
Toolbar toolbar = new Toolbar(headerPanel);

// Add buttons
toolbar.addButton(new ToolbarButton("Button 1", new ButtonConfig()));           
toolbar.addButton(new ToolbarButton("Button 2", new ButtonConfig()));           
toolbar.addButton(new ToolbarButton("Button 3", new ButtonConfig()));

//now display header panel
headerPanel.setVisible(true);

Let me know if this works for you and I'll close this issue.

This works but only if I use headerPanel.setVisible(true, true) ... ie set 
animate to
true.

Closing issue since its an IE issue. Users can use the workaround suggested i.e 
use
headerPanel.setVisible(true, true)