CRC CheckSum Problem ( maybe )

Hi everybody,
this is my first writing , so I hope that it will be usefull to us ...

I'm still learning How2Crack , and I have a program that popup a message if I change any bit in the Exe File .. of cource when I run it after saving the changes ...

I have search for the text that appears in the message and I don't find it ( maybe encrypted ) ..

I use W32Dasm 8.93 + Ollydbg 1.7

Is their any one can help how to solve this problem ???

Thanks to you all

Your Freind