In 6.5.5 is an old bug present: If you use more then one language set threads falls back to default if the session times out. You have to relog or change your personal settings to get your own language set again.
This bug is still after changing the cookie handling to combined cookie/session handling and is very anoying.

Please fix it.

my board: http://www.dragonclan-forum.de
my hobby: http://www.biker-reise.de
Ich kann bei Fragen zu UBBthreads in Deutsch weiterhelfen oder es zumindest versuchen