Thank you very much for your advice. So....just to be clear, this is what I should do:

1. Set the Nokia 810 connection settings for Verizon as recommended above in the first post.

2. Do not mess with the 1X or EVDO settings on the phone, but follow the instructions on the howardforums.com to enable DUN for EVDO.

3. Add VCAST to my phone plan.

4. (This is where i'm still unclear). After inserting a memory card (even though the 810 has an internal one built in?), follow your (aleksandyr's) instructions to remove all instances of "-chap". This will solve the problem of the "authentication failed" error message I keep getting when I try to connect via the phone.

Is that right? You believe that removing "-chap" etc will solve the authentication problem? or is that the proceedure you were referring to in your post that you don't recommend, and I should just stick with the howardforum.com proceedure?

Thanks!
Jane