Have you tried unchecking Use Graphic Processor in Preferences > Performance?
Have you tried resetting Preferences?
You are not displaying the entire Layers panel. Can we see it?
I have tried this - no luck
the preferences are now reset to normal
There is nothing irregular about the layers panel, for some reason when I open the document the panel appears small like this but can be expanded.
Upon trying to make a new blank document, I expect a white page to appear, but instead this has? I have never seen this before and have had no similar problems on my old laptop?
Okay so the strange black/white canvas has returned to normal after re-checking the use graphic processor option but the irregular page positioning is still an issue