diff --git a/src/driver/pictureviewer/pictureviewer.cpp b/src/driver/pictureviewer/pictureviewer.cpp
index c13ce7251..7c81ef2ed 100644
--- a/src/driver/pictureviewer/pictureviewer.cpp
+++ b/src/driver/pictureviewer/pictureviewer.cpp
@@ -774,10 +774,11 @@ unsigned char * CPictureViewer::int_Resize(unsigned char *orgin, int ox, int oy,
 							r+=q[0]; g+=q[1]; b+=q[2]; a+=q[3];
 						}
 					}
-					p[0]= uint8_t(r/sq);
-					p[1]= uint8_t(g/sq);
-					p[2]= uint8_t(b/sq);
-					p[3]= uint8_t(a/sq);
+					int sq_tmp = sq ? sq : 1;//avoid division by zero
+					p[0]= uint8_t(r/sq_tmp);
+					p[1]= uint8_t(g/sq_tmp);
+					p[2]= uint8_t(b/sq_tmp);
+					p[3]= uint8_t(a/sq_tmp);
 				}
 			}
 		}else
@@ -796,9 +797,10 @@ unsigned char * CPictureViewer::int_Resize(unsigned char *orgin, int ox, int oy,
 							r+=q[0]; g+=q[1]; b+=q[2];
 						}
 					}
-					p[0]= uint8_t(r/sq);
-					p[1]= uint8_t(g/sq);
-					p[2]= uint8_t(b/sq);
+					int sq_tmp = sq ? sq : 1;//avoid division by zero
+					p[0]= uint8_t(r/sq_tmp);
+					p[1]= uint8_t(g/sq_tmp);
+					p[2]= uint8_t(b/sq_tmp);
 				}
 			}
 		}
diff --git a/src/gui/channellist.cpp b/src/gui/channellist.cpp
index 02dfe231c..ccc3dce1e 100644
--- a/src/gui/channellist.cpp
+++ b/src/gui/channellist.cpp
@@ -2161,9 +2161,9 @@ void CChannelList::paintBody()
 	const int ypos = y+ theight;
 	const int sb = height - theight - footerHeight; // paint scrollbar over full height of main box
 	frameBuffer->paintBoxRel(x+ width- 15,ypos, 15, sb,  COL_MENUCONTENT_PLUS_1);
-
-	int sbc= (((*chanlist).size()- 1)/ listmaxshow)+ 1;
-	const int sbs= (selected/listmaxshow);
+	unsigned int listmaxshow_tmp = listmaxshow ? listmaxshow : 1;//avoid division by zero
+	int sbc= (((*chanlist).size()- 1)/ listmaxshow_tmp)+ 1;
+	const int sbs= (selected/listmaxshow_tmp);
 	if (sbc < 1)
 		sbc = 1;
 
diff --git a/src/gui/upnpbrowser.cpp b/src/gui/upnpbrowser.cpp
index 43fc71852..649b22860 100644
--- a/src/gui/upnpbrowser.cpp
+++ b/src/gui/upnpbrowser.cpp
@@ -1137,9 +1137,9 @@ printf("CUpnpBrowserGui::paintItem:s selected %d max %d offset %d\n", selected,
 	ypos = m_y + m_title_height + m_theight;
 	int sb = m_fheight * m_listmaxshow;
 	m_frameBuffer->paintBoxRel(m_x + m_width - 15, ypos, 15, sb, COL_MENUCONTENT_PLUS_1);
-
-	int sbc = ((max + offset - 1) / m_listmaxshow) + 1;
-	int sbs = ((selected + offset) / m_listmaxshow);
+	unsigned int tmp = m_listmaxshow ? m_listmaxshow : 1;//avoid division by zero
+	int sbc = ((max + offset - 1) / tmp) + 1;
+	int sbs = ((selected + offset) / tmp);
 
 	int sbh = 0;
 	if ((sbc > 0) && (sbc > sb-4))
diff --git a/src/gui/widget/buttons.cpp b/src/gui/widget/buttons.cpp
index 4134eb0a8..b054760cc 100644
--- a/src/gui/widget/buttons.cpp
+++ b/src/gui/widget/buttons.cpp
@@ -221,12 +221,15 @@ int paintButtons(	const button_label_ext * const content,
 	}
 
 	if (spacing >= 0)
-	{				 /* add half of the inter-object space to the */
-		spacing /= count_labels; /* left and right (this might break vertical */
-		x_button += spacing / 2; /* alignment, but nobody is using this (yet) */
-	}				 /* and I'm don't know how it should work.    */
+	{
+		int tmp = count_labels ? count_labels : 1;//avoid division by zero
+						/* add half of the inter-object space to the */
+		spacing /= tmp;	 		/* left and right (this might break vertical */
+		x_button += spacing / 2;	/* alignment, but nobody is using this (yet) */
+	}					/* and I'm don't know how it should work.    */
 	else
 	{
+		w_text = w_text ? w_text : 1;
 		/* shorten captions relative to their length */
 		for (int i = 0; i < cnt; i++)
 			fwidth[i] = (fwidth[i] * (w_text + spacing)) / w_text; /* spacing is negative...*/
@@ -410,8 +413,9 @@ int paintButtons(       const int &x,
 	else
 	{
 		/* shorten captions relative to their length */
+		int tmp = w_text ? w_text : 1;//avoid division by zero
 		for (i = 0; i < cnt; i++)
-			fwidth[i] = (fwidth[i] * (w_text + spacing)) / w_text; /* spacing is negative...*/
+			fwidth[i] = (fwidth[i] * (w_text + spacing)) / tmp; /* spacing is negative...*/
 		spacing = 0;
 	}