Thank you for your solution. It works fine except when a user visits his/her personal website, then we get the following error:
CS0006: Metadata file 'C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\root\ecd08d46\f540c3bc\App_Web_tc8zzchk.dll'
For your informaiton:
We deployed the solution manually (using stsadm) - we have a FBA properly working for months. After removing the solution the personal sites are working ...
thank you bye!