Re V4.1/morphing tool crash.
 I couldn't find the thread at Daz with the solution, But it is also given in the CP forums. Here it is

The problem appears to be the following :-
Two of the channels in "!DAZVictoria 4head�5-ps_pe070_DAZ_Chnnls.pz2" have an "indexes" line with a non-zero value, but no actual morph deltas.
Changing the number after indexes to 0 stop the morph tool from causing a crash.
For those interested the morphs are :-
PHMEyesIrisConvexity
(has "indexes 529" needs "indexes 0")
PHMEyesIrisAlign
(has "indexes 881" needs "indexes 0")

Basically you need to open the code in a text editor (eg Wordpad), use the search function to locate the relevant code and change the numbers to zero.

The bigger question is, with the solution so simple, why haven't Daz corrected it themselves?

I still find many minor irritations with both V4 and V4.1, so I mostly still use V3.

If you have V4, V4.1 is a free upgrade. Since it leaves V4 intact, I can see no reason not to!

"Don't make me angry. You wouldn't like me when I'm angry!"