Hi I'm HPQC 11.

At present when a user clicks Add Comment (or just edits the comments field), the system lets him delete previous comments. How do I stop this so the user can only append a comment and stops him changing anything in the field previously.

I had thought about the workflow script and checking that the first X characters of the new value match the old value, but the script editor doesn't seem to recognise the Len or Left vbscript commands.