CWM recovery gets replaced by stock ICS after reboot

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http://forum.xda-developers.com – As the title says, I can get CWM to load after using Odin, but after rebooting, booting into recovery brings me to the ICS stock recovery.. tried searching and haven't found anything. Have tried several times, following the instructions I found on here. (been flashing since the g1, so I do have some experience) (HowTos)