To fix compatibility with Clean Vanilla Hud, open hud_main_menu.xml in iHUD directory and replace Radiation Meter section with this

hud_main_menu.xml

<!--========== Radiation Meter =======================-->
    <rect name="RadiationMeter">
        <locus>&true;</locus>
        <systemcolor>&hudalt;</systemcolor>
        <height>60</height>
        <width> 367 </width>
        <image name="radiation_bracket">
            <depth>10</depth>
            <filename> Interface\HUD\glow_messages_radiation_seperator_right.dds </filename>
            <!--<texatlas> Interface\InterfaceShared.tai </texatlas>-->
            <width> 512 </width>
            <height> 128 </height>
            <zoom>&scale;</zoom>
            <x>-135</x>
            <alpha>0</alpha>
            <visible>&true;</visible>
        </image>
        <image name="radiation_pointer">
            <filename>Interface\HUD\glow_messages_radiation_seperator_arrow.dds</filename>
            <texatlas> Interface\InterfaceShared.tai </texatlas>
            <width>46</width>
            <height>24</height>
            <alpha>0</alpha>
            <x>15</x>
            <y>30</y>
            <visible>&true;</visible>
        </image>
        <text name="radiation_text_value">
            <x>237</x>
            <y>65</y>
            <alpha>0</alpha>
            <font>8</font>
            <visible>&true;</visible>
            <string></string>
            <justify>&right;</justify>
        </text>
        <text name="radiation_text">
            <x>245</x>
            <y>65</y>
            <alpha>0</alpha>
            <font>7</font>
            <visible>&true;</visible>
            <string></string>
        </text>
    </rect>