Hello Hifi,This usually happens after takeoff and descending , the wind sometimes becomes wierd and unaccurate. I can see the wind information from shift+z that its keeping changing back to what it's normal to be which means ASE is doing its job, but for some reasons it's being limited to be keeping at the same figure. I solve the problem everytime by openning a program which means a new window is opened and then closed for example FSUIPC, it's back to normal immediately after the program is closed. I'm using DWC.Cheers,Frank Cao

Found the reason. I have installed the unneccesary SP2 upgrade which has already included in the full version installer which i didn't know the first time. After a complete reinstall, i think the problem is solved.Thanks HIFI,Frank Cao