diff --git a/Cocoa/Document.m b/Cocoa/Document.m
index 80da097..37000e0 100644
--- a/Cocoa/Document.m
+++ b/Cocoa/Document.m
@@ -1870,9 +1870,9 @@ static unsigned *multiplication_table_for_frequency(unsigned frequency)
                                         height:oamHeight
                                          scale:16.0/oamHeight];
             case 1:
-                return @((unsigned)oamInfo[row].x - 8);
+                return @((signed)((unsigned)oamInfo[row].x - 8));
             case 2:
-                return @((unsigned)oamInfo[row].y - 16);
+                return @((signed)((unsigned)oamInfo[row].y - 16));
             case 3:
                 return [NSString stringWithFormat:@"$%02x", oamInfo[row].tile];
             case 4:
diff --git a/Cocoa/Document.xib b/Cocoa/Document.xib
index 4c98007..2787aa3 100644
--- a/Cocoa/Document.xib
+++ b/Cocoa/Document.xib
@@ -536,7 +536,7 @@
                                                                     <color key="textColor" name="headerTextColor" catalog="System" colorSpace="catalog"/>
                                                                     <color key="backgroundColor" name="headerColor" catalog="System" colorSpace="catalog"/>
                                                                 </tableHeaderCell>
-                                                                <textFieldCell key="dataCell" lineBreakMode="truncatingTail" selectable="YES" editable="YES" sendsActionOnEndEditing="YES" id="czf-Bn-nZN">
+                                                                <textFieldCell key="dataCell" scrollable="YES" lineBreakMode="clipping" selectable="YES" editable="YES" sendsActionOnEndEditing="YES" id="czf-Bn-nZN">
                                                                     <font key="font" metaFont="system"/>
                                                                     <color key="textColor" name="textColor" catalog="System" colorSpace="catalog"/>
                                                                     <color key="backgroundColor" name="controlBackgroundColor" catalog="System" colorSpace="catalog"/>