Problem with Altera DSP Builder and Matlab

Sir

I cann't go for Altera DSP builder 12 because it does not have "cyclone family". I have a kit from "cyclone family" (EP1C12Q240C8) (mentioned in my 1st post).

Now I install

1. MATLAB2011b (32bit)

2. Altera Quartus II 11.0sp1

3. Altera DSP Builder 11.0sp1

4. Modelsim SE 10.0c

it looks fine but

when I work with "HDL workflow Avisor" (of MATLAB2011b)

In FPGA synthesis and Analysis : it provides a warning

"Warning Downstream Integration: Current version 11.0 of Altera QUARTUS II tool on system path may not be compatible with HDL Workflow Advisor. The compatible version: Altera QUARTUS II 9.1. Attempt to continue running Altera QUARTUS II .."

As Per Altera DSP BUILDER version support

Altera DSP Builder 9.1 is not supported by MATLAB 2011b.

If I install Altera Quartus II 9.1 thn Altera DSP Builder should be also 9.1.

how to solve this problem.

I'm looking forward to receive your kind response ...

With Regards

Kingsuk