SU only shows a blank page

SU 2022 does not show model after opening previously saved files. The model title and outliner info show up but style sheet does not show up. Same with a new document. ie blank page, outliner showing the default model but actual model not visible and no style sheet. Zoom Extents will not reveal the model. Last used SU about 1 month ago.
Any ideas how to fix this problem?

Camera set to Parallel Projection?

Sorry. It’s a GPU problem not Sketchup.

So you have it sorted?

Yes. Thanks for responding so quickly.