[Lynne]

Just adding that one line is hopefully not all you did. I mean when you make a change, you should post ALL the code change like this (changed code shown in red):

<tr valign="top">
<if condition="is_member_of($post[usergroupid], 4, 6)">
    <td class="alt2" width="175" style="border: $stylevar[cellspacing]px solid $stylevar[tborder_bgcolor]; border-top: 0px; border-bottom: 0px; background-color: purple">
<else />
    <td class="alt2" width="175" style="border: $stylevar[cellspacing]px solid $stylevar[tborder_bgcolor]; border-top: 0px; border-bottom: 0px;">
</if>

            <div id="postmenu_$post[postid]">

That is the code taken directly from the template I just modified and it turned all my admin posts purple (the userinfo part) and didn't touch anyone else's posts. So, if you have that exact code above, then I'll ask again about your usergroups. *What* is usergroupid 4 on your forum? Cuz that code changes it for all those in usergroup 4 and usergroup 6.