OP hangs using Faytech display

[agv]

After updating to the latest Linux files (sudo apt update - sudo apt upgrade) and changing the monitor setting in config.txt  (hdmi_mode=87, hdmi_cvt =1024 768 60 1 0 0 0) the problem is still there: in the Starting Openplotter the system halts after 'Checking 800 x 400 display'. The only positive thing is that the system is not quite dead: one has to close the Starting Openplotter window, then the system is available and OpenCPN can ne started normally. The Faytech display is doing OK.
It is still annoying that the system halts and that the Starting Openplotter window is not finished regularly. 
Solution?

Andries