Dropshadows
These dropshadows are crossbrowser, the only difference is that IE doesn't know how to be an artist and doesn't render them as pretty as Safari, for example :) It also doesn't think that #fff is correct and asks for #ffffff.
Dropshadows in IE
Also the bottom right corner in IE is not rounded, but let's be grateful the shadows exist...
The top right corner is not perfect either...