Why do my colours look like this?

[jord]

some (not all, of my colours come out like this... black, with only the edge of that colour? I've reset my preferences and have noclue what it could be. just happened one day after loading a resource.



I guess its work noting that it only shows like this while im working on a document, and the color appears normal if saved to jpg (took screenshot of open document). it even appears normal in the layer thumbnails...

 

[chrisix]

Omg, your photoshop is weird.
well, lets start off with how decent is your computer?
like should it easily be able to run photoshop... with enough ram.

Do you have the opportunity to reinstall it?

which resource did you load?