Ubuntu 13.04 : Can't connect to the Altera website to check for license file update

I have dowload/install the Quartus II Web Edition v13.0.0 and rename libstdc++.so.6 to libstdc++.so.6_bck and this seem to work :)

So, I have dowloaded the dave2_evalkit_2.7_altera-20130405.ziop file from TES and have tested to compile it ...

=> Full Compilation was NOT successful (12 errors, 46 warnings :(

I have this at the end of the compilation process :

Error (292014): Can't find valid feature line for core DAVE2D (294F_D227) in current license
Error (10003): Can't open encrypted VHDL or Verilog HDL file "/home/yannoo/Devel/FPGA/Altera/dave2_evalkit_2.7_altera-20130405/quartus/dave2/altera_3c25_neek/db/ip/altera_3c25_neek/submodules/dave2_enc.vhd" -- current license file does not contain a valid license for encrypted file
Info (12021): Found 0 design units, including 0 entities, in source file db/ip/altera_3c25_neek/submodules/dave2_enc.vhd
Error: Quartus II 32-bit Analysis & Synthesis was unsuccessful. 10 errors, 46 warnings
	Error: Peak virtual memory: 380 megabytes
	Error: Processing ended: Thu Jun 20 00:29:20 2013
	Error: Elapsed time: 00:04:27
	Error: Total CPU time (on all processors): 00:04:25
Error (293001): Quartus II Full Compilation was unsuccessful. 12 errors, 46 warnings

=> where can I find a very basic/simple demo with some 2D (or better 3D) graphics outputs that don't need licence(s) ???

(licences prices/limitations seem **REALLY** to be a big problem when we **ONLY** want to begin with FPGA devel on Altera products ...)