help| thight vnc the server running as application

[shtrull]

in my bussnes i have 5-7 computers and im trying to connect to them remotly thrugh thight vnc must of them work great but some have the same problem it gives me an error
"server closed connection
-the server running as application"
and i can't access the computers
ooh by the way i have on one of the pc's also team viewer as a backup and it works great but i still neet the thightvnc to work as well on all the pc
please help
thanks

p.s.
i have the latest software and windows xp and 7

[Rudi De Vos]

-the server running as application"
--->general error: connection closed by server

This can have several reason
-running as application you don't have permission to access to logon desktop
-running as service: Some firewall block the connection
-....

[shtrull]

im in administrator mode in the xp and windows 7 is set to run as admin windows firewall is down and i dont have any other firewalls ports are open!
and the pc's are after a format

[shtrull]

ive installed the realvnc free edition and i got access