My system is an Intel Core 2 Duo E7500 @ 2.93 GHz, 2 GB Ram and the OS, Windows 7 Ultimate(64 bit). I installed KiCad (5.1.5) -3 release build today. When I tried to run the program, it runs at first, but when I open a new project, the program goes to ‘Not Respondenting’, and I am unable to do anything even after about an hour. The same thing happens every time I open a new project.
Mmm, not sure what is going on, but could you try the latest build of the 5.1 branch (soon to become 5.1.6)?
It sounds very similar to Kicad (5.1.5)-3, you may need to not enable the accelerated graphics mode if you have very little RAM available.
Try to edit the following file in text editor:
And change the value of canvas_type:
to disable openGl.