Hi Sr3046, Please try to reset the window position of 3DXchange with the following steps, 1. Download the attached file: 3DX_reset_position.reg 2. Double click the downloaded file. When a message from Registry Editor prompts you to continue, click "YES". 3. Run 3DXchange and see if it works. I hope this will solve the issue. Let me know if further assistance is needed. Irving Reallusion