USBtinyISP bootloader burning problems [solved]

Hi!

I am trying to burn a arduino duemillanove bootloader on my atmega328p chip with USBtinyISP. It seems to connect fine and the busy lamp shines for a minute and then I get the error.


Error while burning bootloader.
avrdude: verification error, first mismatch at byte 0x7d00
0xf0 != 0xfc
avrdude: verification error; content mismatch

I cant figure out from this short message where it has gone wrong!

After a reboot of win7 and reinstallation of the USBtinyISP driver in windows7 it worked perfect!!!