wandering along the road

[palala 0]

since downloading the SP1 the NG has performed fantastically. BUT the last 2 flights EJJ-EHAM and EHAM-EIDW at altitudes of 330 the acft suddenly starts to wander around the magenta line. watching from outside if I was a passenger, boy would I be sea sick!any clues?thanks

[HiFly 16]

Sounds like an aloft wx related issue. Are you flying on-line? Are you using ASE or another wx program or just FSX weather?

[flyingscampi 2]

Try following this the advice in this threadhttp://forum.avsim.net/topic/350389-my-weather-config-for-pmdg-planes-part-ii/page__hl__fsuipc