matlab中出现??? Error while evaluating uicontrol Callback.

每次启动matlab7.0都会出现下面这些东西：
Error in ==> whitebg at 96
lum = [.298936021 .58704307445 .114020904255]*c';

Error in ==> colordef>kdefault at 71
whitebg(fig,[0 0 0])

Error in ==> colordef at 52
kdefault(fig)

Error in ==> wfigmngr at 94
varargout{1} = colordef('new',Def_DefColor);

Error in ==> wfigmngr at 222
win_hld = wfigmngr('init', ...

Error in ==> dw1dtool at 95
[win_dw1dtool,pos_win,win_units,str_numwin,...

Error in ==> wavemenu>Pus_TOOL_Callback at 121
case 'dw1dtool' , dw1dtool;

Error in ==> gui_mainfcn at 75
feval(varargin{:});

Error in ==> wavemenu at 54
gui_mainfcn(gui_State, varargin{:});

??? Error while evaluating uicontrol Callback.
我不知道为什么，那位高人帮忙解答一下！！！！！！
Error in ==> whitebg at 96
lum = [.298936021 .587043074

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