[FreeNX-kNX] Can't connect any more after breaking connection

[Simon Gao]

Hi,

While testing connection to a machine, I run glxgears  on the remote 
machine, which made the remote Desktop window freeze. I had to kill the 
NX session manually to close NXClient. After that, I can't make 
successful connections to the machine and have following error:

Could not yet establish the connection to the remote proxy. Do you want 
to terminate the current sessions?

Any way to clean up old sessions so new sessions can start successfully?

Simon