Thank you very much, it works. I wonder what's the difference between VM -> Settings -> Hardware -> Display -> Graphics memory, and "mks.sandbox.dataChannelSizeMB" config in .vmx file? And, if possible, could VMWare add some options in GUI to set mks.sandbox.dataChannelSizeMB size and DX version, and provide more information when vm launch failure, such as graphic card only support lower DX version:X ; mks sandbox doesn't have enough free memory?