At a command prompt, I am executing: RO = NEW("RO_ContractHistoryInquiry_ui",%SYS_SS) I am immediately getting: Error #90: Unable to locate Object class definition. I have checked: 1. Checked spelling of class name; cross-checked with CLASS DEF spelling - they are identical 2. Checked to make sure that there is a ".pvc" extension on the program file. 3. Checked to make sure that there are no lines above the CLASS DEF line which are not remarks. 4. Checked to make sure that I can load the program within the current prefix. 5. Checked to make sure that all of the "LIKE" programs are present on the system and can be loaded. What else can I check for? I tried putting some breaks in the ON_CREATE routines of the main program and several of the "LIKE" programs, but I don't get that far. Thanks for the help ... Terry Bauer BCSl l lProSoft Experience. Expertise. Results. Serving the Southwest and all 50 states from offices in Houston, Denver & San Antonio.