League crashing....black screen/reconnecting

I was in game and all of a sudden i get a black screen nothing appeared and when it finally appeared it said that i was attempting to reconnect. I use a gaming PC with 4 gig of ram and the best internet i can buy so its obviously the client and im not even getting loss prevented. PLS if your going to implement a new patch and updates make sure you do something about this lagg cus its not fair that i get to lose and dc all the time with nothing in return. GG