There is a known issue regarding the fact that no one can install themes made by the theme studio on a nokia N91 device.
The themes created are working fine untill you go out of the menu structure.
On the standby screen it automatically switches itself back to the nokia standart theme.
The imported theme is automatically deactivated and must be started again in the theme browser.No chance of having a theme activated tough....
To not start typing all the discussion again, look here please:
More and more people are reportig this error wich is really annoying
Regardless wich Firmware is on the device, they are all not working...
But theres normally no difference between a N91 and other Symbian 3rd Edition phones. The themes are running on every s60 Platform instead of the N91....
Someone in the Nokia Forum got a clue?
Greets from Germany