Application does not display under Internet Explorer

I am developing an application using Firefox 3.6, it displays ok in Firefox but not at all under IE (6 or 8).

Under IE8 the Vaadin debug window gives me the following output:

"Widget set is built on version: 6.5.1
Warning: widgetset version 6.5.1 does not seem to match theme version
Starting application rdacs-108356895
Vaadin application servlet version: 6.5.1
Application version: NONVERSIONED
inserting load indicator
Making UIDL Request with params: init
Server visit took 344ms
JSON parsing took 0ms
change

LOADING
Processing time was 313ms for 4771 characters of JSON
Referenced paintables: 34
New window width: 948
Running layout functions due to window resize
Making UIDL Request with params: b6e3f08f-440f-4b91-b59f-b6ca8e7ad617
Server visit took 78ms
JSON parsing took 0ms
change format=uidl pid=PID0

com.vaadin.terminal.gwt.client.ui.VWindow

LOADING


Layouts analyzed on server, total top level problems: 0
Client side notifications
The following relative sized components were rendered to a zero size container on the client side. Note that these are not necessarily invalid states, but reported here as they might be.
Vertically zero size:

VVerticalLayout inside VView
Emphasize components parent in UI (the actual component is not visible)
VHorizontalLayout inside VVerticalLayout
Emphasize components parent in UI (the actual component is not visible)
VPanel inside VHorizontalLayout
Emphasize components parent in UI (the actual component is not visible)


Processing time was 687ms for 4724 characters of JSON
Referenced paintables: 34"

I use a Chameleon theme, which imports vaadin base theme; after I upgraded to vaadin 6.5.1 I did re-extract the themes; themes/base/styles.css starts with:

.v-theme-version:after {content:“6_5_1”;}
.v-theme-version-6_5_1 {display: none;}

which seems ok to me.

Under Firefox the vaadin debug window does not indicate any error condition. I did try restarting tomcat, deleting IE file cache and cookies, the result is the same.

What could be the problem? Should I post more information?

Could this be the problem:
issue #4580

Are you extending the Chameleon theme further, or are you using it as is?

You’ve got it. I am extending (importing) from a Chameleon theme generated by the editor. If my theme imports directly from Chameleon instead, the application displays in both IE 6 and 8. Thank you so much for this, I would never have found out on my own!