Hi, Since the transition from QScroller to Flickable finished with http://trac.webkit.org/changeset/107232 the minimum required Qt5 hash for current WebKit truk is 63d681ee575c28c972f709af4a1c2b35e03064d8 (Wed Feb 8 17:45:40 2012 +1000). Using older hashes results in crashes or ASSERT's in QtFlickProvider. /Andras