Hi Juan,
I had the same problems and found a work around. Please go to Resource Policies -Terminal Services - Oprions and then enable "IP based matching for Hostname based policy resources". I'm not really sure what it is - but it works.
MArio
Manual Says:
When you enable this option, the IVE looks up IP address corresponding to each host name specified in a Telnet/SSH resource policy. When a user tries to access a server by specifying an IP address rather than the host name, the IVE compares the IP to its cached list of IP addresses to determine if a host name matches an IP. If there is a match, then the IVE accepts the match as a policy match and applies the action specified for the resource policy.When you enable this option, the IVE compiles a list of host names specified in the Resources field of each Telnet/SSH resource policy. The IVE then applies the option to this comprehensive list of host names.
Terminal services did not work for me either after upgrading to 6.0R3. I found that the user roles did not have rights in
Users -> Resource policies -> Terminal Services Policies -> Access
There needs to be a policy to Allow All to *:3394,1494 and the appropriate user roles must added.