I'm experiencing some problems when I use ajax forms on IE7.
My page basically use an a4j:commandLink with some action attribute. This action is described on my faces-config.xml to FORWARD to another page.
It works normally on Firefox and IE6, but doesn't works just on IE7.
The problem don't occurs when changing my navigation rule to REDIRECT to another page. But I couldn't use request scope to my beans (I'm using a4j:KeepAlive).
Just a tip:
Use a4j:htmlCommandLink to make page FORWARDS.
That worked to me on IE6, IE7 and FF, but there's no Ajax request. So Ajax stuff doesn't work (e.g. a4j:actionParam and a4j:status).