Can't run basic NIOS and SOPC Tutorials in 72?

I am trying to do tutorials of NIOS IDE and SOPC, but cannot complete either of them! Are there software issues in v7.2 software?

I have Quartus/SOPC Builder/NIOS II IDE (all 7.2) installed on a PC. I have uninstalled and re-installed these tools but to no avail. Here are some details of what's happening:

1. While doing the "nios ii hardware development tutorial", when I reach page 1-26 ("Generate the SOPC Builder System"), I am getting the following error in the "System Generation" window in SOPC Builder: "Error: Generation skipped because the system has validation errors."

To begin with, what does this error mean - looks to be extremely generic in nature.. and can't find any documentation of it online? I have also tripple checked, and re-done the steps, to ensure that the configured system matches the screenshot shown in Figure 1-13.

2. While doing tu-n2c2h2 ("accelerating nios ii system with c2h compiler tutorial (on fft) "), I am unable to build the project. After selecting the two configurations mentioned in Figure 2.....

>> when I try to build the system (with "Analyze all accelerators" & "Use HW accelerator in place of SW implementation" in C2H window), I get the following error:

--- Quote Start ---

C2H: Hardware accelerator was selected for linking with the analyze-only option, which does not update the accelerator drivers. An existing accelerator driver was not found (because it has not been built, or the directory was cleaned).

Select the "Build and Generate" option to regenerate the accelerator drivers, or select the "Use software implementation" option for the accelerators that do not have drivers : alt_c2h_software_only_fft.c.

--- Quote End ---

>> Using the "Software Implementation" selection in C2H window gives a java.lang error:

--- Quote Start ---

Progress: Loading system from fileC:/altera/72/nios2tutorial/c2h_fft_cyclone_ii/FFT_system.sopc...

Exception in thread "main" java.lang.NullPointerException

at com.altera.sopceditor.util.EditorUtils.setQuartusProjectInfo(EditorUtils.java:1778)

at com.altera.c2h.C2HGenerate.createEnsemble(C2HGenerate.java:130)

at com.altera.sopceditor.app.EnsembleApp.start(EnsembleApp.java:164)

at com.altera.c2h.C2HGenerate.main(C2HGenerate.java:72)

make: *** [c2h_hdl-t] Error 1

--- Quote End ---

* Surely booth these issues look to be tool related! So the question is, has anyone run into these errors, and know how they can be fixed/circumvented?

* Anyone know when SP1 for 72 is going to be out?

* If the suggestion is rolling back to 7.1 or 7.0, where could I get'em from (for download)?

Cheers,

horizon_t