Build Terrain Crashes PC

[Larry]

When I bought my first dual core motherboard it came with a warning that it would slow some software down?????

I guess the MS O/S I/F calls are not well defined as many manufacturers have complained about not being compatible and not getting answers from MS how to become compatible.

[llfalcon]

Larry, because you mentioned the slow-down warning regarding dual-core processors, I saved my plan without Terrain to avoid crashing my PC again, then ran a test. I turned dual-core processing on, clicked on Full Overview and counted. Rebooted, turned dual-core off, clicked on Full Overview and counted. It took five seconds less to render with dual-core OFF, 44 with OFF vs. 49 with ON. It was a fair test. I followed the exact same steps in the exact same order, both the first thing after a reboot.

I'm leaving it off for good. Case closed.