Origin Ver. and Service Release (Select Help-->About Origin): Origin Pro8 Operating System:Windows XP
When I do smoothing or differentiate a graph, used to see a 'change the parameters' option on clicking the lock in the left hand corner of graph or in the worksheet.
But now I dont see that option (Even that lock is not appearing)
Note: In May, something went wrong with the software and it was showing "Failed to invoke function XFOperation::ChangeParam in file Originlab\XFOperation.cpp, either Origin C file is missing or compilation failed." So I added wksoperation.c on snowli's suggestion
When you choose Smooth analysis, in the smooth dialog, could you check if Recalculation Mode is set to None?
When set to none, there will be no lock showing and finished analysis isn't editable.
In the dialog, you can click > button next to Dialog theme to save your dialog settings. Maybe you always use <last used> and it happens the last operation's recalculation mode is None?