Hi A600, thanks for the program. Just a quick question, do you know whether there is any compatibility problem between your program and dingux? When dingux first starts up, I can do a 'cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq', and get the current frequency as 336000, which is the default. After I run './cpu 200', if I do a 'cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq' again, dingux will hang and requires a hard reset.