I think i have some low-sort of the black items problem too. I'll let the pictures talk:

|->The textures are clearly too dark

|->Same from other angle

|->Everything else works nicely (off couse

)
EDIT:I did put the textures onto the module's texture folder and thought about buying hide boots (save cash,i have the auto-save on) and discovered this:
The hide boots aren't dark,like in inventory... on my old computer it had the same issue,items were just completely black on inventory.
So,im asking that why is that happening? I really don't care because they work like they should ingame,i posted this comment for that Talak will know about it and maybe he's able to fix it.
[And by the way,is this broblem only on my computer?]