alert(); not working when called from jQuery objects in IE7

alert(); not working when called from jQuery objects in IE7


Hey everyone,
First of: I love jQuery, just started working with it and it really
has awesome powers. My problem however is the following. when I check
in IE7 a lot seems to be broken, most probably because of me. To check
what is going on at what stage I had littered my code with alert()
calls to check what is happening at what point. These alerts don't
seem to work in IE7.
Then I just removed all my code and kept the following:
$(document).ready(function(){
alert("hello world!")
});
Does anybody know what is going wrong here?
Thanks Marijn