screen resolution css issue

[maverick83]

hi

i am using the below code for my iframe but there are following two issue causing problems :-

1.different screen resolution giving different positions even though i am using postion:relative

2.margin-left working differently in IE and FIREFOX ,there is a huge white space in IE

i am posting the code below

#softframe {
height:690px;
margin-left:710px;
width:510px;
margin-top:-490px;
position:relative;
}


i cant paste the pics coz there is no attachemnt option here ,i also tried using %ages instead of px but result wasnt much different 


looking forward for a favorable response from experts

regards,
mav