So I've been trying to get Terraria to work for the past day. I'm pretty sure its a XNA problem by now but I can't find a solution. I am having trouble installing XNA. I have tried reinstalling .NET before installing XNA manually, I tried reinstalling via steam. I have updated .NET before installing XNA. When I try to install XNA manually, I get a error code: 2908 I also get this message : An error occured during the installation of assembly 'Microsoft.Xna.Framework.Avatar,fileversion="4.0.20823.0",version="4.0.0.00000",culture="neutral",publicKeyToken="842CF8BE1DE50553",processorArchitecture="MSIL". When I try to install XNA through steam the install will loader up, act like its installing and then close. If anyone has encounter this same problem and fixed it, please help a guy out, thanks.