when I try to watch any downloaded demo i get such error:
WARNING! demo protocol outdated.
Demo file protocols 43:5, Engine protocol is at 47:5
No demos listed with startde

What do I have to do?
I reinstalled CS and tied to write in the console "wiewdemo" or "startdemo" it doesn'work

You're trying to view an old demo (1.5 etc) with a newer version that's why you're getting the error, download the sk-player thing and hit fix demo, should let you few it then.

GL.

Yeap. Do what f1tch said!

Thanks i'll try to do it

Here is the text of one more error
Playing demo from skplayer.dem.
WARNING! demo protocol outdated.
Demo file protocols 46:5, Engine protocol is at 47:5

BUILD 2056 SERVER (0 CRC)
Server # 5
Host_Error: UserMsg: Not Present on Clie
And one more.I can't watch demos witch were watched by me recently.So I guess the problen is not here.The demos are not old.

Download newest demo's and I try then.

bad demo :p