MD-82

Hello, the reason I post in this forum about this problem is that at first I thought it was a problem between my AS6.5 or ASX and my FSX. But after I have disconnected AS6.5 and used the internal real weather generator for FSX, nothing changed. Still get completely different winds. At one point I'm overspeeding, the next I am at Alpha Floor protection in my MD-11. Has anybody else had this problem and maybe point me to an article or something? Many thanks, Xander