无奈了 只有求助大家了

无线驱动已好 系统也识别出来了！
但是用 GNOME-PPP拨号的时候提示如下
本人菜鸟 希望哪位大哥告诉我错误的是什么？
-> WvDial: Internet dialer version 1.61
--> Cannot set information for serial port.
--> Initializing modem.
--> Sending: ATZ
ATZ
OK
--> Sending: ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
OK
--> Modem initialized.
--> Sending: ATM1L3DT#777
--> Waiting for carrier.
ATM1L3DT#777
CONNECT
--> Carrier detected. Waiting for prompt.
~[7f]}#@!}!}!} }=}!}$}%(}"}&} } } } }#}%B#}%}%}&y{em}'}"}(}"[18][0e]~
--> PPP negotiation detected.
--> Unable to run /usr/sbin/pppd.
--> Check permissions, or specify a "PPPD Path" option in wvdial.conf.
~[7f]}#@!}!}"} }=}!}$}%(}"}&} } } } }#}%B#}%}%}&y{em}'}"}(}"+T~
--> PPP negotiation detected.
--> Unable to run /usr/sbin/pppd.
--> Check permissions, or specify a "PPPD Path" option in wvdial.conf.
~[7f]}#@!}!}#} }=}!}$}%(}"}&} } } } }#}%B#}%}%}&y{em}'}"}(}"5}:~
--> PPP negotiation detected.
--> Unable to run /usr/sbin/pppd.
--> Check permissions, or specify a "PPPD Path" option in wvdial.conf.
~[7f]}#@!}!}$} }=}!}$}%(}"}&} } } } }#}%B#}%}%}&y{em}'}"}(}"M`~
--> PPP negotiation detected.
--> Unable to run /usr/sbin/pppd.
--> Check permissions, or specify a "PPPD Path" option in wvdial.conf.
~[7f]}#@!}!}%} }=}!}$}%(}"}&} } } } }#}%B#}%}%}&y{em}'}"}(}"S.~
--> PPP negotiation detected.
--> Unable to run /usr/sbin/pppd.