[xwiki-users] Registration feature fails

I've migrated a application from xwiki 1.7 to xwiki 2.1.1 The process i've executed is started with a clean distribution of xwiki2.0 If configured the wiki to multi language and that registration is required Use of email verificatiion to "Yes" Check Active fields for authentication to "Yes" I've manually copied the scripts of welcome and confirmation to the Validation e-mail content and Confirmation e-mail content After that i've exported the wiki and importing the XAR; making sure I did not overwrite any document in XWiki space. Testing the registration gives the following result (we use gmail as SMTP service) User registers and receives the request for validation; result OK User clicks on the link to activate the account The website shows up OK but the validation fails with message; "There was a problem validationg your account, please contact a administrator" The link in the email is the following; http://cdlsworld.devxwiki.com/xwiki/bin/view/XWiki/AccountValidation?validk… Since i'm hosting the site at XWIKI.com i have no access to the file system to check if the key is as expected from xwiki.cfg file How to solve; help greatly appreciated Gerritjan