tastudio:

- properly setup autoloaded and normally loaded project columns
- actually call the callback that updates scrollbars and other stuff

BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.MenuItems.cs

@@ -1241,6 +1241,7 @@ namespace BizHawk.Client.EmuHawk
 			};
 
 			ColumnsSubMenu.DropDownItems.Add(defaults);
+			TasView.AllColumns.ColumnsChanged();
 		}
 
 		#endregion

BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.cs

@@ -394,7 +394,6 @@ namespace BizHawk.Client.EmuHawk
 			}
 
 			EngageTastudio();
-			SetUpColumns();
 			return true;
 		}
 
@@ -580,7 +579,7 @@ namespace BizHawk.Client.EmuHawk
 				TasView.DeselectAll();
 				BookMarkControl.Restart();
 				MarkerControl.Restart();
-
+				SetUpColumns();
 				RefreshDialog();
 			}
 		}