There's no icon of dropbox in the gnome-shell's tray (bottom-right corner). There's just text. I tried different icon themes but still it's missing. Here's a screenshot:
(Sometime the dropbox icon appears in the list, sometine no). The result is this:
Form time to time, the dropbox icon disappears after a resume (but dropbox is still working). Issuing
make the icon reapper. I reported the bug.
How did you install dropbox?
The following should work fine (including in gnome-shell):
When asked to install dropbox from the original location choose not to. After installation it will ask for your login details.
You can start it manually (from a terminal) with: