What is the line of code that has this error?

>Hi,
>I have change rem all my DYNAMICCOLOR code and replace it with GRIDHIGHLIGHTER class that download from download section.
>After a period of testing, the error of "invalid expression" still occured. The problem is as same as before, error will not occured everytime, but may be ONCE after a period of time.
>
>Any ideas?
>
>Thank you