My PBE patcher opens without a problem, but after I hit "play" I get nothing. I've tried the fix for this issue where you
"Delete:
releasemanifest
S_OK

Open the "deploy" folder

Delete:
lib
logs
META-INF
mod

LolClient.exe
LolCliant.swf
locale.properties"
And then repatch, but no matter how many times I do that it doesn't work. Also I've tried both launchers, run as admin, and compatibility modes. PBE has worked fine for me up until the Elise patch then it just.. broke.

Yeah I have been having the same problem, I wish i could help man =p I want answers!