Shadow rendering glitch on jm3 nightly on ATI card

Hi all,

I updated to nightly recently and shadows don’t render conrrectly in my laptop (ATI HD5145) since then. This rendered correctly before the update, so I assume this is not my code fault. I’m not sure if the problem is just my graphics card or any ATI because all the other PCs I own have nvidia cards and the scene is correct on all of them… I’ve also tried running the game on linux and windows just in case but got the same weird rendering.

I attach an screenshot.