Please Help-losing data connection

[MacWilder]

When using custom ROM's I suddenly and without warning permanently lose my data connection. When I try to update my profile, I get a 1012 error. Upper level Sprint tech support is unable to regain it for me or understand the problem even after using the "##-#" procedures to check out the basic settings.

The only way I can regain data access is to reinstall the stock ROM. That works every time.

This happens with both MightyRom and with the Sprint Lovers ROM.

Any ideas as to what the problem might be?

Roger