Wings 1.5.1 released

[TulipVorlax]

Hi,
I received a new comment on my blog on the topic where i explain how to change Wings language to french, and that made me look Wings website and later i downloaded the new 64 bit version, installed it and each time i start it, it give me this error :

Quote:Dump written 2013-10-18_8-50
Version: 1.5.1
Window: geom
Reason: function_clause

Short stack trace:
[]

Long stack trace:
[{wings,move_windows,
[[{wpc_views_win,{{plugin,saved_views},
{1787,677},
{333,75},
[{rollup,false}]}},
{wpc_sel_win,{{plugin,sel_groups},
{1787,264},
{333,130},
[{rollup,false}]}}]],
[{file,"wings.erl"},{line,1717}]},
{wings,handle_event_3,2,[{file,"wings.erl"},{line,434}]},
{wings_wm,handle_event,3,[{file,"wings_wm.erl"},{line,824}]},
{wings_wm,send_event,2,[{file,"wings_wm.erl"},{line,796}]},
{wings_wm,do_dispatch,2,[{file,"wings_wm.erl"},{line,698}]},
{wings_wm,get_and_dispatch,0,[{file,"wings_wm.erl"},{line,612}]},
{wings,init,1,[{file,"wings.erl"},{line,148}]}]

Is it because it try to use the prefs of an old wings version ?
Thanks.