[求助]使用Xmanager2无法连接到服务器！

Netnt.Cn

我用Xmanager2里面的Xstart连接服务器时提示如下信息:
[18:59:12] Connected.
[18:59:12] Version exchange initiated...
[18:59:12]         server: SSH-1.99-OpenSSH_3.5p1
[18:59:13]         client: SSH-2.0-libssh_1.2.1697 NetSarang Computer, Inc.
[18:59:13]         SSH2 is selected.
[18:59:13] Algorithm negotiation initiated...
[18:59:13]         key exchange: diffie-hellman-group1-sha1
[18:59:13]         host key: ssh-dss
[18:59:13]         outgoing encryption: aes128-cbc
[18:59:13]         incoming encryption: aes128-cbc
[18:59:13]         outgoing mac: hmac-sha1
[18:59:13]         incoming mac: hmac-sha1
[18:59:13]         outgoing compression: none
[18:59:13]         incoming compression: none
[18:59:14] Host authentication initiated...
[18:59:14]         Hostkey fingerprint:
[18:59:14]         ssh-dsa 1024 27:99:ad:6e:a4:70:a8:d1:61:30:8f:f9:2e:66:16:5b
[18:59:14]         Accepted. Verifying host key...
[18:59:14]         Verified.
[18:59:14] User authentication initiated...
[18:59:14]         Sent user name 'root'.
[18:59:15]         Sent password.
[18:59:15]         Access granted.
[18:59:16] Sent X11 forwarding request...
[18:59:17]         Failed.
[18:59:23] Connection closed.

并弹出如下提示框

请问怎么搞定？