Also would like to point out that ive successfully clocked my cards over the bios limit in the 11.8 ati drivers. Fanspeed also seems to work nicely on my 5770 card.
Several of us with 5770 and 6770 cards have reported that the program does not detect the fan speed (reports N/A). What is the model number and manufacturer of your 5770 card? A special model might be worth the replacement given the maintenance and automation headache I deal with now.
why don't you leave the fan at default speed? I will try to work something out for the next release.
do you see the fan rpm reported in other programs for the x770? I think it does not read out fan speeds or the drivers do not tell the program that is why it bails out.