For all E51 users:
We added some new features in our 2.0.53 release and Nokia's E51 firmware doesn't really support it. We already escalated the problem to Nokia for a firmware update.
In the meantime, please private message me your phone's IMEI#(press *#06# on your phone) and your email address. I will provide a working package for you until our next official release is rolled out.
Thanks, Wei
wei@devicescape.com