[pigsy]

this is a simplified version of HTML that was working before the update:

<form action="/private.php" method="get" >

        <input type="checkbox" name="sendmultiple[]" class="sendmultiple" value="55527" />
        <input type="checkbox" name="sendmultiple[]" class="sendmultiple" value="241586" />
      <!-- MANY sendmultiple checkbox here! -->

    <input type="hidden" name="do" id="mydo" value="newpm" />
    <input type="hidden" name="s" value="" />
    <input type="hidden" name="userlist" value="buddy" />
    <input type="hidden" name="ttype" value="" />
    <input type="hidden" name="securitytoken" value="1245834853-2216c1a0f058f13f2eff8e092b9c87ed280aebd6" />
    <input type="submit" name="pm" value="Send PM" />
    
</form>

now sendmultiple doesnt seems to be recognized and the private.php form is not already filled with the selected users.