when i try to isntall something from memory card or phone memory that i tranceferd due bluetought or data cable it shows me : "Certefecate may not yet be valid or Phones data settings may be incorrect"
this :
Tools -> App. mgr. -> Options -> Settings

"Software installation" - "All".
doesnt work
there is not so much soft for 3rd edition but i even cant install a simple file explorer (Ybrowser / Sys Broser) .. smartmovie or mp3 player .. nothing

and firm:
V 3.0617.0.6
03-05-2006
RM-92
Nokia N80 (05)

i searched all the web
and it seems im the only one wit N 80 with that problem
i have fr`s with same smart and they have no idea ...
so ill take it on service and hope all`ll be fine in .. 30 day`s... (the phone has been bought .. bevor 10 hours)

Try a soft format! Maybe...