Silverlight list box deosnot scroll on mouse wheel movement on Mac

Silverlight list box deosnot scroll on mouse wheel movement on Mac

I have silver light based web app where.I found the list box doesn't
scroll on mouse wheel scroll.I am able to scroll by clicking vertical
scroll bar.When I use mouse wheel or 2 finger scroll it doesn't work. Here
in Mouse Wheel scroll in List box 2 is working fine but Listbox 1 it
doesnot work.
Listbox 1
<Border CornerRadius="6,6,0,0" Grid.Row="1" Margin="2,5,2,0"
BorderThickness="1,1,1,0" BorderBrush="#FFC4C4C4">
<Grid>
<ListBox x:Name="filterListBox" Grid.Row="0" Grid.Column="1"
Background="Transparent" SelectedIndex="{Binding
SelectedFilterIndex, Mode=TwoWay}" SelectedItem="{Binding
SelectedFilterItem, Mode=TwoWay}"
SelectionChanged="ListBox_SelectionChanged" BorderThickness="0"
VerticalAlignment="Center" Margin="5,3"
ItemContainerStyle="{StaticResource FilterListBoxItemStyle}">
<i:Interaction.Triggers>
<i:EventTrigger EventName="SelectionChanged">
<ei:CallMethodAction TargetObject="{Binding}"
MethodName="FilterSelectionChanged"/>
</i:EventTrigger>
</i:Interaction.Triggers>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBoxItem Padding="7,2"
VerticalContentAlignment="Center" Tag="Popular"
Visibility="{Binding Path=IsPopularChannelTab,
Mode=TwoWay, Converter={StaticResource
BoolToVisibilityConverter}}">
<TextBlock Text="{Binding
Path=PopularChannelsText,
Source={StaticResource PageStrings}}"
FontSize="13" FontWeight="SemiBold"
FontFamily="Arial" VerticalAlignment="Center"
/>
</ListBoxItem>
<ListBoxItem IsEnabled="False"
VerticalContentAlignment="Center" Visibility="{Binding
Path=IsPopularChannelTab, Mode=TwoWay,
Converter={StaticResource
BoolToVisibilityConverter}}">
<StackPanel Orientation="Horizontal">
<Border BorderBrush="#FFBDBDBD"
BorderThickness="0,2,2,2"
HorizontalAlignment="Center"
VerticalAlignment="Center" Height="20"/>
<Border BorderBrush="#FFF8F8F8"
BorderThickness="0,2,2,2"
HorizontalAlignment="Center"
VerticalAlignment="Center" Height="20"/>
</StackPanel>
</ListBoxItem>
<ListBoxItem Padding="7,2"
VerticalContentAlignment="Center" Tag="All">
<TextBlock Text="{Binding Path=AllChannelsText,
Source={StaticResource PageStrings}}"
FontSize="12" FontWeight="SemiBold"
FontFamily="Arial" VerticalAlignment="Center"/>
</ListBoxItem>
<ListBoxItem IsEnabled="False"
VerticalContentAlignment="Center">
<StackPanel Orientation="Horizontal">
<Border BorderBrush="#FFBDBDBD"
BorderThickness="0,2,2,2"
HorizontalAlignment="Center"
VerticalAlignment="Center" Height="20"/>
<Border BorderBrush="#FFF8F8F8"
BorderThickness="0,2,2,2"
HorizontalAlignment="Center"
VerticalAlignment="Center" Height="20"/>
</StackPanel>
</ListBoxItem>
<ListBoxItem Padding="7,2"
VerticalContentAlignment="Center" Tag="Favorites">
<TextBlock Text="{Binding Path=FavoritesText,
Source={StaticResource PageStrings}}"
FontSize="13" FontWeight="SemiBold"
FontFamily="Arial" VerticalAlignment="Center"/>
</ListBoxItem>
</ListBox>
</Grid>
ListBox 2
<Grid Visibility="{Binding Path=IsHavingProvider,
Converter={StaticResource BoolToVisibilityConverter}}" Margin="0,20,0,0"
Grid.Row="4">
<Grid.RowDefinitions>
<RowDefinition Height="18"/>
<RowDefinition Height="auto"/>
</Grid.RowDefinitions>
<core:MagicTextBlock Grid.Row="0"
TextBlockStyle="{StaticResource TextBlock_Style}"
Text="{Binding Path=WatchTVActivity,
Source={StaticResource PageStrings}}" />
<ListBox Margin="0,10,0,0" Grid.Row="1" x:Name="Provider"
Width="480" Height="195" HorizontalAlignment="Left"
ScrollViewer.HorizontalScrollBarVisibility="Disabled"
ItemsSource="{Binding Providers,Mode=TwoWay}"
SelectedItem="{Binding SelectedProvider,Mode=TwoWay}"
ItemContainerStyle="{StaticResource
Table_ListBoxItem_Style}"
DisplayMemberPath="name">
</ListBox>
</Grid>