cygwin-xhost-tvtime

how do i use cygwin remote desktop to show tvtime screen.
i started x server via command:
startxserver
xterm
xhost + 172.26.12.116 (a linux server)
ssh -l username 172.26.12.116
export DISPLAY:172.26.12.121:0.0 (my host)

tvtime

problems:
Running tvtime 1.0.1.
Reading configuration from /etc/tvtime/tvtime.xml
Reading configuration from /home/chenzp/.tvtime/tvtime.xml
xcommon: No window properties found for EWMH.
Xlib: extension "XVideo" missing on display "172.26.12.121:0.0".
xvoutput: XVIDEO extension not found: X too old? didn't load extmod?

how do i fix it? thanks first.
.