I can't use Rstudio because of visual bug


I install Rstudio on my laptop this morning and I can't use Rstudio.
When I go with my mouse on element some black square appear or windows splits up and I can't do nothing.

I install the last version , and old one ...
Why I can do in order too have a Rstudio working ?

Thank you for your help!

I would try this first,

Great... it's work like a charm now
Thank you very much

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