<ajaxToolkit:Accordion
    FadeTransitions="true" ... >
 

When FadeTransistions is set to "true" IE7 will render the page properly, but on the first expansion/contraction of an accordion panel all panels will loose ClearType.

Set FadeTransitions to "false and the clleartype issue goes away.

Note: FF2.0 doesn't seem to exhibit this issue.

 - Joe Levi, Web Developer, www.JoeLevi.com 

Joe,

Glad someone else out there seems to care about this. !!! Im amazed that anyone uses the asp.net Ajax accordion.

Further - maybe due to a newer release(?) I cant get celartype to work in IE7 even with fade transitions="false". To me this makes the ajx.net accordion totally useless! I want to use it for a menu on my site, so either have to

a) put up with nasty nasty fonts,

b) use images instead of text

 >> another alernative is to use another accordion control from another framework - I have been playing around with the mootools accordion, and got cleartype to work (eventually) by setting some params when instantiating it in javascript. Problem is - using more than one Jscript framework is never fun - there are clearly duplicate function names accross the mootools and asp ajax.net frameworks and so they don't play well together - at all.

>> Alternatively it is possible to get the collapsible pannel to work with cleartype in IE7 - without fade transitions, but unfortuneately if you have more than a couple of thes

see following for more info on IE 7 filters and Directx e on one page, the javascript starts to get really heavy and you end up with a massive page !  Plus I dont know how to get the full accordion effect with collapsible pannels - i.e. how to ensure only one pannel open at a time.  

 All in all pretty dissapointing really.

 If anyone has a sensible solution to this it would be great to hear, but alas i think there is none. Think its basically due to the way IE7 was built. This is why firefox is fine. Maybe we should all switch to FF2.0 - if only everyone else would do the same. 

 see the following (post 43) for opinion for someone who knows more about what their talkign about than me....

http://mir.aculo.us/2006/11/21/script-aculo-us-hits-1-7-beta

"If Microsoft wouldn’t use DirectX to do something that it honestly has no business doing, this would work just fine but hey I’m just the guy who has to work around it."

I just think its such as shame...

Hi everybody,

you can use these CSS-Attributes for the content of the AccordionPane to solve this problem:

filter: alpha(opacity=100);
opacity: 1.0;
background-color: white;

I hope I could help .....