Quartus 11 bug concerns ALT2GXB

[Altera_Forum]

Hello. 

 I am trying to use Quartus V11.0 (without sp1) for Stratix-IIGX.   When I am trying to create ALT2GXB block for SONET/SDH, it do not let to change the input clock frequency (see image, "What is the image clock frequency").   What is the cause for such situation and what can I do to create a correct SDH/SONET block?   There is no such problem for ALTGX and Stratix-IV.   My OS is Windows-7 64 bit.   Thank you in advance.

[Altera_Forum]

UPD. 

 There is no such problem in Quartus V8. Will sp1 for Q11 help me?

[Altera_Forum]

SP1 haven't helped to me :(.

[Altera_Forum]

Any news on this problem?  

I have an issue with a clk freq that used to compile on Quartus 9 but not on 11.

[Altera_Forum]

have you tried 11.1sp1?

[Altera_Forum]

I've solved this (and further) problems by migrating to Quartus 9.1. 

This and previous versions are working good with Stratix-IIGX, 10 and later have bugs.   Last version I've tryed was 11.0sp1. 11.1 hangs even without SIIGX :(. (didn't tryed 11.1sp1)