slow population of dropdown using IE8

[ThatsIT.net.au]

I have a drop down list, actual its the combo box from the ajaxtoolkit, I'm
populating it with a list of suburbs for each state in Australia. This works
well in chrome Firefox and even IE8 compatibility mode, but not in IE8, it
IE8 it is very very slow.
so I decided to use the meta tag
<meta http-equiv="I-UA-Compatible" content="IE=5" />
but still no good, the only way I can get it to work is by removing any
doctype, then it seems to work in a reasonable time like other browsers.

any ideas why this is?

I could leave the page in compatibility mode, but the combo boxes have
slight css problem.

 

[Alexey Smirnov]

I have a drop down list, actual its the combo box from the ajaxtoolkit, I'm
populating it with a list of suburbs for each state in Australia. This works
well in chrome Firefox and even IE8 compatibility mode, but not in IE8, it
IE8 it is very very slow.
so I decided to use the meta tag
<meta http-equiv="I-UA-Compatible" content="IE=5" />
but still no good, the only way I can get it to work is by removing any
doctype, then it seems to work in a reasonable time like other browsers.

any ideas why this is?

I could leave the page in compatibility mode, but the combo boxes have
slight css problem.

ajaxtoolkit has known problems with IE8

http://weblogs.asp.net/bleroy/archive/2009/03/23/asp-menu-fix-for-ie8-problem-available.aspx
http://support.microsoft.com/kb/962351

 

[ThatsIT.net.au]

I have a drop down list, actual its the combo box from the ajaxtoolkit,
I'm
populating it with a list of suburbs for each state in Australia. This
works
well in chrome Firefox and even IE8 compatibility mode, but not in IE8, it
IE8 it is very very slow.
so I decided to use the meta tag
<meta http-equiv="I-UA-Compatible" content="IE=5" />
but still no good, the only way I can get it to work is by removing any
doctype, then it seems to work in a reasonable time like other browsers.

any ideas why this is?

I could leave the page in compatibility mode, but the combo boxes have
slight css problem.

ajaxtoolkit has known problems with IE8

http://weblogs.asp.net/bleroy/archive/2009/03/23/asp-menu-fix-for-ie8-problem-available.aspx
http://support.microsoft.com/kb/962351

I'm a bit confused, is this hotfix to be installed on the production machine
or the server?
I tried installing it on my production machine Vista x86 and it told my its
not for my computer. I installed the windows 2003 ok on a win 2003 machine.
Also the link to the vista fix is not the same description as the windows
2003 hotfix. I wondering if its the correct hotfox under the vista link.