We have several programs that are "bugging" out with silly errors that don't make sense. For example - we'll get a runtime error 8 file status 37 for a file, then restart the program (changing nothing) and it runs fine. Sometimes it happens, sometimes it doesn't. There is no file corruption, and the programs haven't changed. So - this leads me to believe it's the environment. The environment is proprietary ISAM. The errors we experience are 8/37 and 8/30. The fix we've been using is to just re-start the program (on the same machine) and it always runs. However - we set these programs up to be run in batches automatically so we don't need a babysitter. We are frustrated! We've tried ISAMFCB = 6 and ISAMFCB = 8. Neither has worked consistently to solve the problem. Any ideas?