Blank page "My Profile"

Hello,

For some obscur reason, I'm getting a blank page when trying to access the "My Profile" page for a user (http://mysite/nickname). I turned on php logging but no error is showing. I also downgraded my php version from 5 to 4, same issue. Does anyone would know a fix for this, or at least would have a trick to identify the problem.

Thank you

Hi,

I tried the ini_set trick -> same. Logged in members can't access the index.php page as well.

Is there some specific apache or php settings, except the ones mentioned in the installation instructions?

Thanks for your help.