I've been a fan of Larian for a long time, but this mess with various releases and different versions of DD is truly a shame.
Nothing beats quality original ©. Still I believe that the true *proper* version of DD is the original RETAIL game release (3CD, 1.0029A, released September 2002) with one of the latest official patches (1.0033A or 1.0034A) installed. These two patches are almost identical with only one difference: in 1.0033A you should start a new game (savegames from previous versions are incompatible), in 1.0034A you can use savegames from older versions (1.0029A, 1.0031A, 1.0032A) but in this case the patch will not fixes the map errors which are still present in the game.