Hi Everyone, MPLab V7.4 crashed on me recently. After it did, I found that I could no longer use the simulator normally to test code. The simulator will process code in the background but I don't get the functions normally available like breakpoints and the program counter arrow in the main code window. The Watch window values are updated but this makes it really difficult to track the program flow. Working with 16 and 12 series chips it works fine. Microchip tech support recommended a complete uninstall and registry clean then reinstall. I did this but saw no difference. I don't know if the sim18.DLL file was corrupted or if the problem is elsewhere but nobody seems to be able to come up with a solution. If anyone could offer any suggestions I'd love to hear them. Regards, Andy -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist