did you let all of your d3 clients update the 1.6 patch 1 at a time? If you try and open the D3 clients at same time one will work others will stay black scree. i updated mine 1 at a time and they all work now. hope this helps
Actually, just realised it's not updating screwed up, it's the shortcut for my 1st D3 mysteriously changed its target to 2nd D3 after update @@
Everything is good now. Thx ppl