startx of KDE takes too long!

Startx too long start of kde! please help
When i start tke KDE (with startx command) i must wait a long time.

Here are two things to immediately try: Check the permissions of /tmp/.ICE-Unix which should be owned by root:wheel and set to 1777 (or drwxrwxrwt)
KDE will still work without these permissions, but it will cause a pause during startup if it's not.

Also, Check your machine knows it's own address. Make sure you have a proper entry in /etc/hosts with the real hostname and ip address (not just the localhost one.) Messed up DNS can cause a 2 minute or more timeout when KDE is starting up.