Floor is black/game freezes when walking to any village

[Naeght]

When i try to log on a settled area with any of my characters all the objects and houses load but the floor is all black. When i log at my hf thats in a mountain, i can play perfectly until i get close to a village and the game freezes.
Happened with both ender's and nilla client, tried deleting java cache but it's still happening, and i get no error message from where to start trying to fix it.
If it somehow helps, i was able to log with this computer 1 or 2 moth ago.
My guess is some missing graphic maybe?

[Naeght]

New information, on the nilla client, whenever i try to log in a populated area all i get is the black "loading" screen.

[borka]

something with your connection?

I'm on very slow G3 connection atm with very low datatransfer and it takes long till the floor tile graphics are loaded so i do have balck floor too for awhile...