Sorry, hit enter too soon. Here's from Event Viewer: Faulting application name: Simplify3D.exe, version: 4.0.1.0, time stamp: 0x5a82ec7b Faulting module name: ntdll.dll, version: 10.0.16299.334, time stamp: 0xe508fc03 Exception code: 0xc0000374 Fault offset: 0x00000000000f879b Faulting process id: 0...