I publish a school newspaper and yearbook. Both use PM 6.5 on Mac G4 with an OS 9.4. When we(I or my students) are inputing new text, occasionally the new text will disappear and be replaced with various symbols and numbers. A broad black line will also sometimes run down the page vertically. Neither the pointer tool or the text tool will recognize the symbols or line, thus we can't get rid of them. We try to delete them, and the symbols convert themselves to a long vertical line of symbols. We can't type over them. We've had to recreate page after page of documents. Plus, when we send the pages via zip to the publisher and printer of the documents, some of the files show up corrupted and they cannot be opened or fixed. We have completely reformatted one of the G4's and reinstalled PM, and we still have this problem. There is plenty of memory allotted to PM on both machines. Have had endless tech people out and all are baffled. Any clues?