Problem with gui : Error while evaluating UIControl Callback

Hey everyone. I was working on my gui interface for a while, and recently it started showing me this error. The whole idea of gui is to connect with multimeter and make measurement. It launches and runs but at some point (60-90 sec) it would show me this : Error using but_conf_aply_Callback (line 306), Error while evaluating UIControl Callback. The code in that line is following : pause(0.005); And after that, whole Matlab won`t work, so i have to relaunch it again. I don`t use global variables. Please help. The file is attached below.

[Jan]

Is this the complete error message? It tells only, where the error occurs, but not, what the error is.

Some ideas: Using "sum" as name of a variables causes troubles frequently, when the function with the same name is used later.

temp=sprintf('%.2f',temp);
set(handles.edit1,'string',num2str(temp));

temp is a string already, so there is no need for num2str here.

[Pavlo M]

Thanks for your answer Jan. Yes, unfortunuately, that`s only the error which matlab shows.