Soldato
It's a Fury X, and temps are reported as 32 degrees max at the moment. :/ I really hope this bugger isn't on his way out.
Like I said it's only confined to some windows, and if I move the mouse cursor, or another window over them you cannot see them anymore. For instance in chrome if I scroll down, they move up the page, as if they're embedded into it.
Have you upgraded the FuryX firmware to the UEFI version came out last year? (April 2016).
Do you use modded Bios?
Have you tried to switch to BIOS 2 on your card?
Have you tried different monitor?
Have you tried different cable?
That issue you are experiencing is pretty much hardware related. But to remove just in case any software issues, uninstall the drivers, use DDU and wipe them out completely.
Then install the later ones only. Also remove completely (wipe settings also) the MSI AB or any other overclocking software before you remove the drivers.
If you do all the above and the issue remains, unfortunately two options exist
a) open the card, give it a good clean, fresh Kryonaut paste and VRM padding.
b) RMA.
I have a Nano and using the latest drivers without issue. Also mine is heavily overclocked and even when I play with the VRAM overclock to 600/1200 I do not see such artefacts. Only way back with the GTX580 which was overheating when overclocked, and had to replace the padding.