Quartus9.1 can't generate pof file when using CycloneIV

[Altera_Forum]

Hi: 

  I use EP4CGX15BF14C6 in my design. When I complie the project using Quartus9.1, it can't generate pof file. The report says:  Specifications for device EP4CGX15BF14C6 are subject to change. Contact Altera for information on availability.  Does this mean the CycloneIV chips can't be used right now?

[Altera_Forum]

You'll probably need to upgrade to QII 9.1 SP2. 

There should be full support for CGX15. See:http://www.altera.com/literature/rn/rn_qts_dev_support.pdf  Cheers, Ton