HELP! display error: appearance of lines

hello to all, I have a display problem preventing me from working.
Lines have appeared on the 3D and I cannot remove them. They are related to objects. (I can’t select them)
They appear on all my new documents and on all old documents that I open.

Is it a setting to change, a bug, a virus?

Please I need help!!!

Hi Sandy - can you please run the SystemInfo command in Rhino and post the results?

-Pascal

Hello Pascal,
Thanks for your help
I will try and show you at 9:30 when i will be in front of my computer !