About a week ago, with no changes to my system or Steam platform, I was unable to run Dota 2 off of Steam. I am still unable to load it. I receive an error message right after clicking "play" reading,"dota.exe has encountered a problem and needs to close. We are sorry for the convenience." Error Signature: "AppName: dota.exe AppVer:0.0.0.0 ModName: shaderapidx9.dll
ModVer: 0.0.0.0 Offset: 00045fd0"
Let me know what information I need to present to you all, thank you!