the node make error : COntrol & Simulation Loop 'Control & Simulation Loop': VI failed to compile , i can't run the vi program.. i read this therad about similiar problem -> http://forums.ni.com/t5/LabVIEW/Control-amp-Simulation-Loop-failed-to-compile/td-p/2440452 but i dont understand how to use memory block in my case, please help.. i will appreciate if you use a picture to explain,, thanks