I am unable to read entire messages because I get "more availabl: xxx bytes". (The xxx represents the amount of bytes)
This occurs on messages with longer than usual threads. Other people on my company's system dont get this message on the same email. I have 4 mos of email history in the Curve.

You should be able to get it once the message is retrieved. I get that a lot on longer messages and when I hit the end, more will download.

However, with 4 months of messages you might also be using a lot of available memory.

Keep in mind when the BB starts running out of memory, call logs and email get deleted. Do you have a good back up if you really need to keep that much email on the device itself?