I've been trying to fix this for a while, and looked up a number of threads on the matter. But there seems to be nothing specific to my issue.
I've backed up all my messages from a Sony Ericsson Aino - u10i on to a memory card to use on the Nokia 5800 xpressmusic that I've recently reverted to.
The Xpressmusic inbox shows only messages from the phone memory even though I've changed the "memory in use" option to read from the Memory Card.
Most other threads say it could be a fault with the Nokia memory card that I've been using to transfer the data. However, it reads just fine on the Aino.
Please help !