The option is on, and normaly it works too.
Note: Because i started this program in LccWin32 first, i have had a copy. Not the newest version, but better than nothing.
Suggestion: If i save a project, the IDE could make a copy of the old '.c' file and rename it to '.bak'. Then save the changes in the '.c' file.
Would be easier and saver than Pelles method. I think turbo pascal 7 and/or free pascal made it that way.