ok so this issue is still present on some i7 computers because even after you do install it with acpi=off you still get an acpi issue when booting up from the hard disk and if you turn off acpi then...

ok im glad that i could be of help. I wonder if this fixes the acpi issue i also have with my i7 though. I will try it soon i just downloaded UNETBOOTIN and im adding the backtrack4 iso to a...

ok i have the same issue with a new i7 a505-s6033 toshiba laptop. Im not sure what to do to fix this issue. But i think it might have something to do with acpi and turning it off? or maybe im wrong...