You can refer to the 1st page of this topc.

Depend on ur location. ap around 1200. Ori around 1350-1380

update to the latest FW, found some problem.
couldnt access my 'contacts' anymore, dunno why.
cant access from the shortcut key nor from the conventional inside menu way.

got to re-update the FW tonite.

try to search at internet,
i read before, but too complicated, better not to do, so give up d.
haha.

u can download theme from Nokia WAP by using your E71 browser,
the "natural" theme quite nice    , download from there is no need to sign. (or should say it's already sign)

by the way, i'm no longer E71 user,
my E71 sold d, Omnia user now,
just sharing my experience here... 

(what i like most is the 5 days standby time of E71, and fully charge it only need 3.5 hours.
and also the processor speed, make me always forgotten that my phone is a Symbian smartphone,
response speed is even faster than non-smartphone S40  )

lol. i dropped once. in my pocket. pocket got hole...zzz. after that always hanging in hand.