Page Hanging

[awongjoeh]

After succeeding in building my website, why do i get the pages different on different computers?For example, i could see the pages not hanging on my computer but when i opened my site on my friend's computer, i could find my pages hanging(i.e not filling the entire height of the computer)It appears to be half way up and a big gap left down.I tried that on two or three different computers and it yielded the same result.
Please help.http://shesagermany.org