Syntax highlight has no scrollbar for a long string

Input: There is a long line wrapped into syntax highlight and that has to be scrollable.

Result: No scrollbar. For example see my thread http://developer.qt.nokia.com/forums/viewthread/1127. The 4th syntax highlight (the one that contains the error from make)

Expected: The scrollbar should be visible, so that the line can be easily scrolled to its end and back.