I was successfully rooted until the 4.0.4 update. I was still unlocked so I "fastboot flash recovery twrp-crespo4g-2.0.0RC0.img" OK, that worked after a couple tries. So now I can use clockworkmod in recovery mode. I wiped both cahes. I flashed "root.zip" and then "su-188.8.131.52-ef-signed.zip". Ok, root checker says I do not have root access. I see Superuser now as part of the operating system but I cannot use wfi tether beta 6 or beta 11. These apps start "with errors, check log file" (there is no log file, btw, when I check it) and FoxFi also starts but does not actually connect to the internet. How could I have clockwork installed but NOT have root access?