Nokia E90 IMAP4 problem

Hi,

Wondered if anyone had any suggestions on the following nokia e90
problem.

I have had a email account setup on my nokia e90 for the last 6
months. The web mail host that i use changed over to smartermail and
about the same time i upgraded my nokia rom to the latest version (to
try and get the GPS lock on problem sorted).

Anyway, before i did all this the email was working perfectly, but now
when i connect to my mailbox, the list of mail item populates to the
screen fine. When i try to go in and read one of these it won't let
me. Its almost as if when connecting to the mailbox it will always do
a refresh of the contents and then drop the connection.

Even if i try to read a mail item it looks as though it tries to do
the above, so when it tries to read the mail the connection has been
dropped and does nothing. Very annoying.

I have tried just about every email setting there is within the e90
but there doesn't look anything that would be available to keep the
connection alive.

What i've not sure is if this is a result of the bios update or the
fact my webmail supplier changed its software?

Any one have any ideas?

Thanks

Ian.