We've tried this now with different phones, both GW 6.5 and GW 7
installations,, same issue.

Been searching the KB,, nothing,, tried writing WAP...no hits..?,,

Looked here in the forums and did some tests by using;
User.interface and User.lang options, both by running it in English
instead of Swedish,, also by setting WML ... no difference..

Browsing,, reading,,etc,, works, but it is IMPOSSIBLE to reply to any

Open Mail,
Then,, Reply,,
Then, choosing "message".., upon choosing "open",
unknown fileformat comes up.

And, off course, unknown fileformat is also unknown in the KB.