[amibroker] Walk Forward Testing - Varies by Computer?

["jacklweinberg" <jacklweinberg@xxxxxxxxx>]

Question: 
How is it possible for a walkforward test to produce different results on two different computers?
Background:
1. AB program, database, system, watchlist, walkforward settings etc. are on a usb key that is moved from one computer to another.
2. Before the walk forward test, the same walkforward settings file is loaded. The same system is executed. The results are also put into the same usb key.

Why do two different computers produce different results? (and strangely enough, very different results!)




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