I have been running my summa d60 on Window 98 for about 6 months. I use Corel and export into Winplot. The other day I went to cut and the message in Winplot came up as " Failed to Open Device Comm1". The plotter was not fully size up the media either. Re-loaded the Summa driver and I think I got the cutter set up again. Now, when I try to open Winplot a message " A required .DDL file, LASERMARKER.DDL was not found. I talked to Summa and they said that Winplot will not work with Windows 98, but I have been using this setup for 6 months with no problems. I plan on upgrading to xp anyways. Just curious to why it just stopped working now? Any info would be greatlt appreciated.