CSS Transparent Scrollbars and XP font smoothing

Help!

Intro
I have a few scrolling divs on a site.
We want to avoid using javascript scrolling if we posibly can and therefore are colouring the scrollbars.
I realise colouring the scrollbars only works on limited browsers however this is just an attempt to get this to look better in a few browsers.

The Problem
The problems we are having are appearing when we try and make the background transparent using the filter:chroma.

To do this we are using:

Code:

---

div {
        filter:chroma(color=#660000);
        scrollbar-face-color:#74A0B9; 
         
        scrollbar-arrow-color: #A0DCDD;
        scrollbar-track-color: #660000;
       
        scrollbar-shadow-color: 660000;
        scrollbar-lightshadow-color: 74A0B9;
        scrollbar-darkshadow-color: 660000;
       
        scrollbar-highlight-color: 660000;
        scrollbar-3dlight-color: 660000;

---

This creates a scrollbar with a transparent background allowing the colour detail below to show though.

The problem with this however is that in XP with font smoothing switched on the text, the text instead of smoothing the text, it block colours were the smoothing should be.

Does anyone have any ideas we can use to fix this (either turning of the font smoothing for the page or stopping the text picking up this line of code)

Thanks

Laura