Mobile data not working on CyanogenMod 9 [4.0.4 tytung HWA R3.4] [SD/MAG]

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http://forum.xda-developers.com – Hello, I installed this rom (22.8.2012 update) and I like it so much. It's fast, stable and everything is working fine except the data network. I tried to re-install the rom many times and to set APN by default and manually but mobile data network doesn't work. it works without problems using the same sim card and the same APN on windows 6.5. Can anyone help me? (HowTos)