MegaWizard Plug-In Manager hangs when making a PLL (Quartus II v14.1.1)

The following problem is completely repeatable:

Within Quartus, in IP Catalog window (default position on right of screen)select: Installed IP -> Library -> Basic Functions -> Clocks; PLLs and Resets -> PLL -> ALTPLL

dialog: Save IP Variation

file name: /home/rac/FPGA/my_first_fpga/pll.v

file type: Verilog

window: MegaWizard Plug-In Manager [page 1 of 12]select speed grade: 6

try to change the input clock frequency

WINDOW IS NOW UNRESPONSIVE

Nothing in the MegaWizard window is active, and if I cover/uncover it with another window, it won't update.

I can eventually close the MegaWizard window using the close box in the upper right window frame.I then get the dialog: Metacity

MegaWizard Plug-In Mnager [page 1 of 12] is not responding.

choose Force Quit or Wait

With a Force Quit, I am back in the Quartus main window and I can exit normally.

My system and install:

OS: Centos 6.6 (64-bit) fresh installwith all the Altera listed libraries installed except libzmq3.i686 (it wasn't in the repo)

Quartus II version 14.1.1 (update 1)installed from downloaded files

Quartus-web-14.1.0.186-linux.tar

QuartusSetup-14.1.1.190-linux.run

Another note: I get the exact same behavior with this Quartus on Linux Mint 17, and on two different computers. I installed Quartus on CentOS to see if there was some "magic" associated with the "approved" distribution.

Thank you