jquery - Background 100% and scroll problem -

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i try put background in 100% following code:

html { -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-color: # f2f2f2; background-size: cover; background-attachment: fixed; background-image: url (.. / images / background.jpg); background-repeat: no-repeat; background-position: top left; }

my problem when scroll scroll content choppy. tested image resize script jquery , doing research found nothing on subject, if turn off background @ 100%, scroll again fluid. problem? website: http://www.confederationcreative.ch/dcube/en/store/

i apologize vague answer, have not experienced choppiness in firefox 4, internet explorer 9, , chrome 10.0.648.208.

it helps if tell browser (ie, firefox, chrome, opera, etc.) , version (ie9, firefox 4, chrome 10, opera 10, etc.).

also, os using , computer specs? not matters, thought might ask.


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