i have serious problems with a C::B build on ubuntu 5.10 with contribs enabled.
every time when i close C::B, it crashes and can't save its configuration file default.conf
how do i get rid of contribs enabled 

in the past i built C::B with
./configure --enable-contrib  but now i want to revert this build option,
i tried:
./configure --disable-contrib  i did a completely fresh svn-checkout, and after
./bootstrap
./configure
all contribs are build again ........ grrrrrrrrrrrrr     :x
where is this info stored, which file do i have to delete to get rid of these contribs enabled 

any ideas?
thx