Problems starting Adobe Photoshop CC 2021

[Nicholas Giuseppe5E31]

I open photoshop and I get stuck in the main screen without having the possibility to create a new project or open an existing one, no dialog box appears. 

[c.pfaffenbichler]

Could you please post a screenshot to illustrate the issue? 

Have you turned of the Home Screen yet? 

[Nicholas Giuseppe5E31]

[c.pfaffenbichler]

Does turning off »Use Graphics Processor« in the Performance Preferences (Photoshop > Preferences > Performance > Graphic Processor Settings) and restarting Photoshop have any bearing on the issue? 

Have you seen these threads yet? 

https://community.adobe.com/t5/photoshop/photoshop-black-screen/m-p/9645088

https://community.adobe.com/t5/photoshop/photoshop-2020-blank-work-space-issue-black-screen/m-p/1074...