diff --git a/TBF/Data.cs b/TBF/Data.cs
index ab3ecdc91..86c957b78 100644
--- a/TBF/Data.cs
+++ b/TBF/Data.cs
@@ -29,7 +29,7 @@ namespace TBF
             CompoundWMsCount = compoundWMsCount;
             LineSize = wmsCount / Math.Max(1, linesCount);
             HeatMetersCount = 0;
-            MaxPartNr = WMsCount / LineSize;
+            MaxPartNr = (LineSize != 0) ? (WMsCount / LineSize) : 1;
         }
 
         /// <summary>
diff --git a/TBF/Properties/AssemblyInfo.cs b/TBF/Properties/AssemblyInfo.cs
index 503f85ebe..89dcabbda 100644
--- a/TBF/Properties/AssemblyInfo.cs
+++ b/TBF/Properties/AssemblyInfo.cs
@@ -29,5 +29,5 @@ using System.Runtime.InteropServices;
 //      Build Number
 //      Revision
 //
-[assembly: AssemblyVersion("3.1.1736.0")]
-[assembly: AssemblyFileVersion("3.1.1736.0")]
+[assembly: AssemblyVersion("3.1.1740.0")]
+[assembly: AssemblyFileVersion("3.1.1740.0")]