I just recently modified vi (vers 3.6) to handle lines that are up to 1K long; it took about 20 minutes. Changing it for 4K should be just as easy, as long as you have large process sizes (or are editting small files). Dave Olson, Fortune Systems UUCP: {ihnp4,ucbvax!dual}!fortune!olson ARPA: dual!fortune!olson at BERKELEY