http://bugs.winehq.org/show_bug.cgi?id=31275
--- Comment #1 from Markus ldm@gmx.at 2012-07-21 15:02:03 CDT --- Also affects Excel 2010
https://dl.dropbox.com/u/13281067/excel-subpixel-bug.png
See the "fontsize" textbox has subpixel rendering the "font-famlily" textbox has no subpixel rendering.
Subpixel rendering fails unless hovering with the mouse.
Everywhere else outside of textboxes subpixel rendering also fails.
Setting in registry is [HKEY_CURRENT_USER\Control Panel\Desktop] "FontSmoothingType"=dword:00000002