ISATAP diver clashing with ata drives

I recently added a netgear ADSL router, Vista decided that it would be a good
idea to activate the TCP/IPv6 Settings, what a nightmare, the driver clashed
with the ATA drives and although I managed to get rid of two of the 3 ISATAP
drivers that didn't work and the 6to4 driver that was in error state but I
cannot delete the third ISATAP driver and this is interfering with the ATA
drives so niether of my Optical drives work! I have now disabled the TCP/IPv6
settings by creating an extra registry entry, but still cannot delete the
driver. any ideas???

Thanks in advance