https://forums.autodesk.com/t5/fusion-design-validate-document/computer-just-froze-solid/m-p/5700848#M292886 Thanks guys. I'll uninstall and reinstall and see if that helps. I keep current on Ccleaner, memtest, etc, etc.<BR />I built the machine:<BR /><BR />MSI Gaming 5 Mobo<BR />Intel i7-4790K<BR />8gig GSKILL memory<BR />Geforce GTX 970<BR />Samsung 850 PRO SSD<BR /> Wed, 01 Jul 2015 00:16:58 GMT russtuff 2015-07-01T00:16:58Z