flash upload

its shows
"time left: 0 s"
Transfer rate: 0 B/s",

but i do upload.
in the status column i have updates with the percentage update working, as also below the 2 white (or/and) green bars, the update works also.

kind strange.
using firefox 15.0 beta on win7 64 bit.
(maybe also its my crappy pc. who knows)