با پاک کردن فایل 3dsmax.ini تنظیمات برنامه به پیشفرض بر میگرده .
منبع: Autodesk.com
Note: By default, the 3dsmax.ini file will be located under the path C:\Documents and Settings\<username>\Local Settings\Application Data\Autodesk\3dsmax\<version>\enu in XP and under the path C:\Users\<username>\AppData\Local\Autodesk\3dsmax\<version>\enu in Vista. These paths include hidden folders, so be sure to enable the ability to see hidden folders in Windows
موفق باشید.