Bug#339965: solution to the problem

[Kai Müller]

Hi, it is confusing if a messagebox is apearing, that tells it cant read
personal configuration, but nevertheless logs in.
To change this behavior gdm.conf must be changed such that groupwritable
directories are alowed, that means:
set
RelaxPermissions=1
in section security in gdm.conf. if not present insert it.
thats it.
as you have groupwritable homes by default, gdm should not complain
about them - and they are no security hole with user private groups, as
stated before.