I notice you have an odd mix of office 2003 themes and windows xp themes in the windows client.
As an example, the toolbars have the office 2003 blue....but the main Tabs...are in the standard windows XP theme white with the orange "mouse hover" highlight fo rthe top 2 or 3 pixels.

Would be nice to see it be all office2003, or all windowsxp....or even a user preference to switch between the two.