I installed  DNN 4.07 this morning on 1and1.com server and the install went through successfully, however, while administering the site,  I continuously receive this error.   Can someone help me please? Thank you.

http://chicagoviet.com/home/Default.aspx

DotNetNuke Error: - Version 04.07.00

Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

Please help!   I deleted the database and did a clean install and same error.

1. The install process went through successfuly, but error occurs when I try to access the site.

2.  Full Access was granted to IUSR and NETWORK SERVICE.

3.  I'm installing it directly on the hosting server, which is 1and1.com

4.  This is the url of my site is: http://chicagoviet.com/home/Default.aspx

Below is url at the time error occurs.

http://chicagoviet.com/home/Default.aspx?tabid=36&error=Request+for+the+permission+of+type+'System.Security.Permissions.FileIOPermission%2c+mscorlib%2c+Version%3d2.0.0.0%2c+Culture%3dneutral%2c+PublicKeyToken%3db77a5c561934e089'+failed.&content=0

Yes I did open up two tickets on this already and tech support said IUSR and NETWORK SERVICE has full rights to the /home directory.  I was able to verify this using their webfiles console to view the permissions.   If permissions weren't correct, I wouldn't be able to install DNN successfully - correct?

I did some searches on the web and some sites said this "error" has something to do with ASP.net  medium trust and full tust.   Do you know if this has anything to do with it?  Also does DNN require full trust?  Is there are work around for medium trust?

Thanks.