DE2 compilation problem

hi guys,

I have a Ciclone 2 2c35 and I've been trying for a long time to run a SOPC project that came with the quartus II 8.1 software...

I'm trying so called standard platform that is in the

..\altera\81\nios2eds\examples\vhdl\niosII_cycloneII_2c35\standard

directory.

When i generate it in the SOPC builder, comiple with quartus, and try to run a simple program in the NIOS sdk i got the following message/problem:

Using cable "USB-Blaster [USB-0]", device 1, instance 0x00

Pausing target processor: not responding.

Resetting and trying again: FAILED

Leaving target processor paused

Searching on the internet for some solutions i found people who said that the problem is related with the DDR SDRAM Controller that comes with the megafunction pack, and that changing this to the default SDRAM controller would solve this issue.

When i change the SDRAM controller i got some compilation problems on Quartus II:

Error: Port "clk_to_sdram_from_the_ddr_sdram_0" does not exist in macrofunction "NiosII_cycloneII_2c35_standard_sopc_instance"

Error: Port "clk_to_sdram_n_from_the_ddr_sdram_0" does not exist in macrofunction "NiosII_cycloneII_2c35_standard_sopc_instance"

Error: Port "ddr_a_from_the_ddr_sdram_0" does not exist in macrofunction "NiosII_cycloneII_2c35_standard_sopc_instance"

Error: Port "ddr_ba_from_the_ddr_sdram_0" does not exist in macrofunction "NiosII_cycloneII_2c35_standard_sopc_instance"

... 13 errors in total, related with the same component and the ddr_** ports.

Does anyone has any ideas of how can i proceed to solve any of the problems? I can try to solve problem 1 or problem 2, if someone helps =/

thanks

Julio