Problems exist also on new installation on server R2008. Installation on local machine server 2012 workt fine.

I hope this of some help.

Dear Cheers

 I clear browser history, cookie..... I change Controlbar with Ribonbar,... I clear Cash, I do several things as some body told about that to several website that I found it, but It's not working.... I thing the DNN is going to dangerous and very sensitive position because in all new version we can see  Unstable Portal and very sensitive.

Also DNN 6 was very user friendly than DNN 7 for page settings and....

I have very big DNN base project in Middle East but I have several problems and most of clients told me this is very difficult to use and very slow and....  I love DNN but now I Scared it. I Use Dedicated Server Windows Server 2008 R2 with SQL 2008 R2 from hetzner.de model EX6. This is good and I have about 100 Portal on that. most of them are sub-portal in 2 Engines. every day my problem growing and growing and growing ... I don't know what is the problem? Upgrade? Number of sub-portals? Server? settings?.....