Ron Ricci posted a discussion

Occasionally, the chart display on my E125 (Lighthouse V10.34) 'freezes' and does not respond to either touch screen or most hard key inputs.  I can 'unfreeze' it by selecting the 'Home' hard key and then 'Chart Display' from the home screen.  My system has an E125, four I70's, an iTC-5 and a Ray260 with AIS.  (It also has an HD radar which was not powered on.)  The Ray260 is a new addition to the system and I had not experienced the problem with the Ray260 off.  At the time of the freezing, the system was following a route.This happened about five or six times the other day with the VHF on.  During a typical freeze, the chart display would not respond to a zoom in/out, pan (drag chart), center on vessel or menu from either the touch screen or hard keys.  One time, while passing a buoy, I noticed the vessel had not moved relative to the buoy.  After about ten  minutes, I unfroze the display as described above.When not 'frozen', the display seemed to work fine.  Occasionally, it would 'redraw' the chart quickly.  It properly displayed AIS targets and Navionics charts. The only other anomaly noticed is usually after power up, the system does not always respond to touching the 'accept' button and the hard button (stick) has to be pushed.  I've tried aligning the touchscreen which didn't help. See More