STK500/IDE

I am newbee and just started with arduino. (English is not my native language)

I use studio4 and stk500 and avrispii clone. All working well. No problems with drivers etc.
I do not own a bootloader board yet.
Now I hooked up and tried on several computers, the Arduino IDE and STK 500 and tried to burn
a atmega8 bootloader.

The software sends 3 times 30 20 and gives the not sync frase.
With the mkii clone it says no usb device found.

Then tried avrdude standalone and stk500 is working.

What do I do wrong?
Help is very much appreciated.
Gaosqq