It seems like the zebra seal to the LCD is not getting a good enough connection. Might as well try the two suggestions below before RECYCLING it as it is already broken.

If it uses a rubber connection to the LCD, make sure there is enough pressure to the PCB and LCD.

Likely, this uses a mylar connection given the symptoms. I had a car with similar issues. Do a google search for "SAAB LCD SID" and you will find tips to try to repair this type of connection.