Did you know that UTF-8 supports dozens of different types of 'space' characters? What if the Wikipedia page contained some odd space character that got into your password?
Perhaps you could let us know a bit more about the software you're using. What OS? What web-browser and what version of that browser? Maybe Internet Explorer (if you're using that) has some odd way of copying and pasting that lead to an unexpected character ending up as part of your password?
I agree, Upload it to anonfiles and post link to us. You need to give us all the info associated to your wallet to us.