diff --git a/web/zm_funcs.php b/web/zm_funcs.php
index cb96ab105..2bf65cacd 100644
--- a/web/zm_funcs.php
+++ b/web/zm_funcs.php
@@ -932,10 +932,11 @@ function getImageSrc( $event, $frame, $scale, $capture_only=false, $overwrite=fa
 	}
 	else
 	{
-		$fraction = sprintf( "%.3f", $scale/100 );
-		//echo "F:$fraction<br>";
+		if ( version_compare( phpversion(), "4.3.10", ">=") )
+			$fraction = sprintf( "%.3F", $scale/100 );
+		else
+			$fraction = sprintf( "%.3f", $scale/100 );
 		$scale = (int)round( $scale );
-		//echo "S:$scale<br>";
 
 		$thumb_capt_path = preg_replace( "/\.jpg$/", "-$scale.jpg", $thumb_capt_path );
 		$thumb_anal_path = preg_replace( "/\.jpg$/", "-$scale.jpg", $thumb_anal_path );
@@ -1016,7 +1017,10 @@ function createListThumbnail( $event, $overwrite=false )
 
 function createVideo( $event, $format, $rate, $scale, $overwrite=false )
 {
-	$command = ZM_PATH_BIN."/zmvideo.pl -e ".$event['Id']." -f ".$format." -r ".sprintf( "%.2f", ($rate/RATE_BASE) )." -s ".sprintf( "%.2f", ($scale/SCALE_BASE) );
+	if ( version_compare( phpversion(), "4.3.10", ">=") )
+		$command = ZM_PATH_BIN."/zmvideo.pl -e ".$event['Id']." -f ".$format." -r ".sprintf( "%.2F", ($rate/RATE_BASE) )." -s ".sprintf( "%.2F", ($scale/SCALE_BASE) );
+	else
+		$command = ZM_PATH_BIN."/zmvideo.pl -e ".$event['Id']." -f ".$format." -r ".sprintf( "%.2f", ($rate/RATE_BASE) )." -s ".sprintf( "%.2f", ($scale/SCALE_BASE) );
 	if ( $overwrite )
 		$command .= " -o";
 	$result = exec( $command, $output, $status );
diff --git a/web/zm_xhtml_view_event.php b/web/zm_xhtml_view_event.php
index a30a47fff..38300ecd3 100644
--- a/web/zm_xhtml_view_event.php
+++ b/web/zm_xhtml_view_event.php
@@ -250,7 +250,10 @@ $scale = (int)(($width_scale<$height_scale)?$width_scale:$height_scale);
 $scale /= $frames_per_line; // Try and get two pics per line
 
 $count = 0;
-$fraction = sprintf( "%.2f", $scale/100 );
+if ( version_compare( phpversion(), "4.3.10", ">=") )
+	$fraction = sprintf( "%.2F", $scale/100 );
+else
+	$fraction = sprintf( "%.2f", $scale/100 );
 $event_path = ZM_DIR_EVENTS.'/'.$event['MonitorName'].'/'.$event['Id'];
 for ( $frame_id = $lo_frame_id; $frame_id <= $hi_frame_id; $frame_id++, $count++ )
 {
diff --git a/web/zm_xhtml_view_eventdetails.php b/web/zm_xhtml_view_eventdetails.php
index 8d86f38d0..33ece3c60 100644
--- a/web/zm_xhtml_view_eventdetails.php
+++ b/web/zm_xhtml_view_eventdetails.php
@@ -78,10 +78,15 @@ function getThumbnail( $event, $fid, $scale )
 
 		if ( !file_exists($thumb_image) || !filesize( $thumb_image ) )
 		{
-			$fraction = sprintf( "%.2f", $scale/100 );
+			if ( version_compare( phpversion(), "4.3.10", ">=") )
+				$fraction = sprintf( "%.2F", $scale/100 );
+			else
+				$fraction = sprintf( "%.2f", $scale/100 );
 			if ( file_exists( $image_path ) )
+			{
 				$command = ZM_PATH_NETPBM."/jpegtopnm -dct fast $image_path | ".ZM_PATH_NETPBM."/pnmscalefixed $fraction | ".ZM_PATH_NETPBM."/ppmtojpeg --dct=fast > $thumb_image";
-			exec( $command );
+				exec( $command );
+			}
 		}
 	}
 	return( $thumb_image );
diff --git a/web/zm_xhtml_view_video.php b/web/zm_xhtml_view_video.php
index 32c17787a..85d808f92 100644
--- a/web/zm_xhtml_view_video.php
+++ b/web/zm_xhtml_view_video.php
@@ -97,7 +97,10 @@ else
 
 if ( !empty($generate) )
 {
-	$command = ZM_PATH_BIN."/zmvideo.pl -e ".$event['Id']." -f ".$video_format." -r ".sprintf( "%.2f", ($rate/RATE_BASE) )." -S ".$video_size;
+	if ( version_compare( phpversion(), "4.3.10", ">=") )
+		$command = ZM_PATH_BIN."/zmvideo.pl -e ".$event['Id']." -f ".$video_format." -r ".sprintf( "%.2F", ($rate/RATE_BASE) )." -S ".$video_size;
+	else
+		$command = ZM_PATH_BIN."/zmvideo.pl -e ".$event['Id']." -f ".$video_format." -r ".sprintf( "%.2f", ($rate/RATE_BASE) )." -S ".$video_size;
 	if ( $overwrite )
 		$command .= " -o";
 	$generated = exec( $command, $output, $status );