Camera Views show double arrows on blackscreen

[PaulJ33]

Hello,

When I choose a camera view to see my content in 3D mode, I first see a black screen with 2 large arrows pointing to the 2 o'clock position of screen, one on top of another. It sometimes flashes to where I can see 3D mode for a brief second and then nothing onscreen, only white background. This also occurs at startup of Home Designer. The option area is black screen with the 2 arrows. I tried downloading the program again and re-installing, but no difference.

Could this be a driver problem? Never did this before. I have Home Designer Pro 2021.

Thanks for any info.