Gridlines in Cubase 10.5 LE

Help all my gridlines have disappeared and I can’t get them back. They’ve gone in all my projects. I’ve tried the obvious like activating bars and rests but to no avail. There seems no obvious way to just turn them back on. Any suggestions gratefully recieved.

Most likely there isn’t enough contrast with the background. I don’t know about LE, but if it is like Pro you can adjust the gridline colors in Preferences.

Thanks for the tip on Preferences. I’d zoomed out too far and that was the issue, but the adjustment feature in Preferences is useful to know.