party chat crash

i played lots of hours/weeks and no/never had crash since last year !

now starting to Party ...i get a crash to desktop when change to party chat !

1 : open chat with "enter"..chat is local or global
1.5: might of typed a few words(then noticed i not in party chat !)

2 :click chat drop down box : hover mouse over "party chat"

3 : mouse click "Party chat" = instant crash

windows XP sp3

You might want to try to run PackCheck as described in http://www.pathofexile.com/forum/view-thread/18531. Some part of the file might be corrupted