Hmm, I just read elsewhere that IXEG do NOT officially support XP11, so perhaps we can ignore what I said below. It looks like ground drift is a known issue.
I haven't figured out how to delete this post.
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I create a new flight at startup KSFO, stormy weather (slide weather slider to the far right)
I notice that the airplane is very very slowly rotating on the spot.
I go into flight configuration and tweak the weather to increase ground wind speed up from 15kts to say 30kts.
I apply the changes.
I watch my 737 get blown across the runway.
Perhaps my IXEG 737 is sliding on the ice, but if I change the weather to clear, and keep the same wind settings, the aircraft still slides about to a great degree on the "dry" tarmac and ultimately rotates about 90 degrees..