The horizontal lines look thin for the length of the column, then return back to normal for other columns so it looks like it's been "shaved" for these columns.
My grid is as follows (and I can attach a screen shot of how my grid looks like). The first column is a checkbox column and I am creating the rest of the columns dynamically.
<telerik:radgrid id="PlanRadGrid" AllowFilteringByColumn="True" AllowSorting="True" AutoGenerateColumns="False" GridLines="Both" HeaderStyle-HorizontalAlign="Center" CommandItemStyle-HorizontalAlign="Left" HorizontalAlign="Justify" OnDataBound="PlanRadGrid_DataBound" OnItemCommand="PlanRadGrid_ItemCommand" runat="server" Skin="WebBlue" OnGroupsChanging="PlanRadGrid_GroupsChanging" OnItemCreated="PlanRadGrid_ItemCreated" GroupHeaderItemStyle-HorizontalAlign="Left" ShowFooter="True" OnPreRender="PlanRadGrid_PreRender" OnItemDataBound="PlanRadGrid_ItemDataBound" OnInit="PlanRadGrid_Init" OnColumnCreating="PlanRadGrid_ColumnCreating" OnNeedDataSource="PlanRadGrid_NeedDataSource" >
<MasterTableView TableLayout="Fixed" CommandItemDisplay="Top" DataKeyNames="ProjectID" GroupsDefaultExpanded="False"
GroupLoadMode="Client" ShowGroupFooter="True" >
<CommandItemTemplate>
<asp:Button Runat="server" ID="ApplyFilterButton" Text="Apply Filtering" CommandName="MultiFilter" />
<asp:Button Runat="server" ID="ClearAllFiltersLinkButton" Text="Clear All Filters" CommandName="ClearFilters" />
</CommandItemTemplate>
<NoRecordsTemplate> There are no projects for this plan version. </NoRecordsTemplate>
<Columns>
<telerik:GridTemplateColumn Groupable="False" AllowFiltering="False" UniqueName="CheckboxColumn" Resizable="False">
<HeaderTemplate>
<asp:CheckBox ID="headerChkbox" runat="server" OnCheckedChanged="ToggleSelectedState" AutoPostBack="True" />
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="CheckBox1" runat="server" AutoPostBack="False" />
</ItemTemplate>
<HeaderStyle HorizontalAlign="Center" Width="30px" />
<ItemStyle HorizontalAlign="Center" />
</telerik:GridTemplateColumn>
</Columns>
<ExpandCollapseColumn>
<HeaderStyle Width="20px" />
</ExpandCollapseColumn>
<RowIndicatorColumn>
<HeaderStyle Width="20px" />
</RowIndicatorColumn>
<CommandItemStyle BackColor="Beige" VerticalAlign="Top" Font-Bold="True" Font-Size="Small" HorizontalAlign="Left" />
</MasterTableView>
<FooterStyle Font-Bold="True" Font-Size="Small" Font-Italic="True" />
<HeaderStyle HorizontalAlign="Center" />
<GroupHeaderItemStyle HorizontalAlign="Left" />
<CommandItemStyle HorizontalAlign="Left" />
<FilterMenu EnableTheming="True" Skin="WebBlue">
<CollapseAnimation Duration="200" Type="OutQuint" />
</FilterMenu>
</telerik:radgrid>
Thankyou for your assistance,
Danielle