Hey @donna2904,
Welcome back to the community and thanks for taking the time to post your issue on the forums.
I'm really sorry that you're having issues with your picture quality at the moment.
Is this happening on all channels or particular channel or group of channels?
Please could you check that the coax cables are connected securely to the Virgin Media equipment, any splitters (standard and powered) and to the wall socket?
Regards,
Steven_L