You've two choices. First, you can try to fix the project using any table repear utilities. There're a couple of them in the download section. Second, you can recreate the project from scratch. In any case, make a copy of the project before atemting anything.

>hi,
>
>thanks sergey.
>but there is a little problem.
>now, the project file ( pjt ) is cannot open.
>it says "Memo File .pjt Is Missing Or Invalid"
>how to fix it ?