[Argh]

You'll need to make a quick edit to one of the xml files for your target window. Make sure EQ is closed before you do the following:

• Go in to your uifiles in: EverQuest\uifiles\duxaui
• Open up EQUI_TargetWindow.xml

  You'll probably need to run notepad as an administrator and then file > open and navigate to the file specifically to be able to save.

• The last item should be something like this:

  <Screen item="TargetWindow">
  <ScreenID />
  <RelativePosition>false</RelativePosition>
  <Location>
  <X>516</X>
  <Y>242</Y>
  </Location>
  <Size>
  <CX>124</CX>
  <CY>50</CY>
  </Size>
  <Text>Target</Text>
  <Style_VScroll>false</Style_VScroll>
  <Style_HScroll>false</Style_HScroll>
  <Style_Transparent>true</Style_Transparent>
  <TooltipReference>Your Current Target</TooltipReference>
  <DrawTemplate>WDT_Rounded</DrawTemplate>
  <Style_Titlebar>false</Style_Titlebar>
  <Style_Closebox>false</Style_Closebox>
  <Style_Minimizebox>false</Style_Minimizebox>
  <Style_Border>false</Style_Border>
  <Style_Sizable>false</Style_Sizable>
  <Pieces>Target_HP</Pieces>
  <Pieces>Target_HPLabel</Pieces>
  <Pieces>Target_HPPercLabel</Pieces>
  <Pieces>A_TargetBoxStaticAnim</Pieces>
  </Screen>

• Change on the above bolded line true to false.
• You should be able to change background options in game for this window now.

Run Everquest.