[CA] [CA11] RNS 6.1 - Windows 7 Display Issue/Crashing - E120

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Onboard PC running RNS 6.1 has been working great for 2 years and now the software will not display GPS Chart/Sonar/Video feeds visually, but is receiving the data in numerical format. In chart mode, the map starts to render and then program crashes and attempts to restart repeatedly (photo attached). The Radar mode however is fully functional, displays properly and program remains stable until you change to another mode.

Windows 7 is up to date and I'm assumed an update caused the issue, but after uninstalling updates to previous versions, still having same problem. Also tried reinstalling RNS 6.1 and even tried 6.0 with no luck.

Intel NUC PC - Windows 7
Raytech RNS 6.1
E120 classic - 5.69 firmware
Seatalk HS network

Any help would be very appreciated.

Thanks-

Sam