I am having the same crashing problems. It seems to crash while using pretty much anything that changes somethings shape, and crashes very often. Sketchup Make 15.3.331 64-bit Extensions - AMS Soften Edges, Taper Maker, PathCopy, SuSolid, Soap Skin. Computer: Dell Inc. Studio XPS 8100 2.93 gigahertz Intel Core i7 870 8152 Megabytes Usable Installed Memory ATI Radeon HD 5700 Series Video Card Windows 7 Home Premium (x64) Service Pack 1 (build 7601)