Running Quark 4.1 on Win 98 OS, machines are P3 650's with 128 mg Ram. Have always had a problem with the program getting corrupted and not launching, easy fix there by renaming or re-installing, but recently one machine will crash constantly, we are able to work for about 10 minutes and boom, illegal operation message and Quark shuts down. Uninstalled the program and re-installed, same problem. We work from a shared drive on an NT Server, all graphics, images etc are saved and collected on that drive and other boxes have no problems.Memory resources are ok, and the local hard drive is only 65% full. Any ideas????