diff --git a/trunk/IO.f90 b/trunk/IO.f90
index 179ed3b58..baba4a9a6 100644
--- a/trunk/IO.f90
+++ b/trunk/IO.f90
@@ -565,15 +565,19 @@
  character(len=80) msg
 
  select case (ID)
- case (100)
-   msg='Unable to open input file.'
+ case (100)
+   msg='Unable to open input file.'
+ case (110)
+   msg='No materials specified via State Variable 2.'
+ case (120)
+   msg='No textures specified via State Variable 3.'
  case (200)
    msg='Error reading from material+texture file'
  case (300)
    msg='This material can only be used with &
   &elements with three direct stress components'
  case (400)
-   msg='Unknown alloy number specified'
+   msg='Unknown alloy number specified'
  case (500)
    msg='Unknown lattice type specified'
  case (600)