Hello, I am a new idecad user. To learn how to use İdecad, I downloaded the demo version and started learning the program. My question will be, it is said that the only difference of my demo version from the locked version is that it cannot print, but the program gives errors in both drawing and calculations, sometimes when I turn it on and off, it gets fixed and sometimes I cannot fix it at all. I learned that different people have the same problems. Is there any solution?