[Paraview] Animating a sequence of vtk files in v3.0

[Matthew Lear]

In PV versions <3.0, I could visualize a sequence of data written in 
sequentially numbered vtk files i.e., out_1.vtk,out_2.vtk...out_n.vtk.  
Each set contained data at one instant in time and they were ALL opened 
by selecting the first file in the sequence.  It worked great.

In version 3.0, I can't open the entire sequence by opening the first 
file AND I have not been able to find a way to animate them.  What am I 
missing?  I can't imagine that this functionality is gone but I have 
been reading that a lot has changed in how animation is handled.

Please help.  Thanks.