Terraria wont launch correctly

Hi!
I have a problem. I download Terraria from steam,but when I run Terraria the window don't open,although it appears in the task manager.
I tried reppair the framework and the xnabx,uninstall and install then and Terraria,change the monitor's options but anything work,and I don't know what's I have to do.....
I could play Terraria 2 years ago,I don't understand why don't work...
Help,please. Thanks