Fatal Internal Error:"drawmgr.cpp",line 2937

[lwy86]

Hi All

   I running a VI not EXE,When I response a button and call another VI to do something other,VI has Locked,Every input controls are no response,include labview's  menu bar,but  all Indicators are OK and the  program is running.

   When I close the program with windows's Task Manager,error appeared,

  This error does not happen often,about one time one day.

Does anyone know？

Thanks a lot!