Asus G46VW -just updated to BIOS 210 and now can't boot *** Solved ***
*** Solved *** (i think?)had to disable secure boot to un-grey launch CSM options. enabled launch CSM then enabled PXE and rebooted. now it works. not sure if that's a proper stable workaround, after 5 reboots, it's booting fast and fine.unless someo...