WebNews Cache

[dnews]

Hello!

    Maybe it's wrong group, but I don't know where post it also. ;-)
Question is easy ;-). Work WebNews like easy Web-NNTP-Client: authorisation
of users at Dnews, etc... But, different users have access for different
groups. But, when user log-on, displayed groups, whitch already in cache. Is
it possible to retrive list of availible groups from web-server for each
user? Thanx for answer.

With best regards,
Vadim