I configured my SharePoint application to allow anonymous access and it's working fine.
When I add a visual web part that contains just a label to a page and approve it, anonymous users can't see the webpart.
Is there anything that I have to do?
Any change that you enabled the output cache on your page? It behaves different for anonymous users vs logged in users.
p.s. just a wild guess, but the output cache monster got me a few times ;)
my webpart zone was inside the security-trimming control, after i delete this control my web part works perfectly.