I have been running dbaseiv under XP with no problems until I received a 16 Bit MS-DOS Subsystem error stating The NRVDM CPU has encountered an unhandled exception - choose close. I have tried downloading TameDOS because I believe the Dbaseiv is hogging the system but it isn't helping right now - maybe after I get dbaseiv to open again since I know it does slow my windows programs down. Any ideas on this error and what to do to solve?