I installed Groupwise 2012, but I don't think Webmail is such a big improvement, I liked the old one better. Some issue's:

Why must I open every mail in a new tab? Why isn't a quickviewer integrated. Now I double click a mail, it opens a new browsersession, I read it, click the red X in the top corner and select another mail. Why the hell must I do so many steps to read a mail. Open it at the bottom, just like the Windows client.

Where are the colorscheme's, BLACK!, why? Is there someone dead? Is it a funeral? Why isn't webaccess with more colors, it looks like a 1999 webpage!