Main menu font rendering

I have created an app with a main menu. The menu has 3 levels.

- The main bar at the top.
- A drop down with a sub menu.
Root font size = 18
Item font size = 14
In Firefox,
The drop down boxes look great.
In IE8, the 2nd level drop down box font looks very fine and scratchy but the 3rd level box font looks normal.
Is there a problem with the font rendering in IE that can be corrected ?
Where do I post my demo application if you need it.

I have been able to reproduce the issue with font rendering.

It seems this is a browser related problem where IE is not rendering the font correctly under special circumstances.
Unfortunately there's no suitable workaround available at this time.