This has happened to me on two different computers. My old system (Win7) and my new system (Win10) both experience problems with long projects stalling out and the software becoming unusable. More so the older system, but the new system as well. The new PC is a Intel I5 with 12GB of RAM and a fresh install of Win10. No other software is failing. What I experience is that during a long project, say with 3-4 different pieces of gcode in that needs to be run consecutively against the same XY zero point, is that eventually I can no longer make the software jog, run code, or navigate menus. Also, displays of position and buttons freeze up and no longer respond. The only fix is to stop the software completely and reload, which of course causes me to lose my XY zero. Much frustration follows. I'm now using Universal Gcode Sender nearly exclusively. There are more features in the Openbuilds software but it's cost me too many projects and I just don't trust it. Suggestions?