[Problem] USB Tethering for ZTE Blade

[Guest martinhy]

i've tried USB tethering with both Jap Jellyfish RLS7 and Paul's R7

after enabling the USB tethering in the settings panel,

my v880 keeps restarting when i start browsing the internet in my netbook

but when WiFi Tethering is absolutely fine

i've installed the ZTE China Official USB Drivers

is it the problem of the phone or the drivers?