Question The following messages are displayed when I run simulation with modelsim 6.0. Warning: (vsim-PLI-3691): Expected a system task, not a system function '$fseek'. Warning: (vsim-PLI-3691): Expected a system task, not a system function '$sscanf'. Is this a bug of Modelsim 6.0, or did I miss some files or setting? Answer $fseek as a task. It is a function, and returns a value. You must call ..