Client side validation stopped working!

[mohaaron@gmail.com]

I just discovered that client side validation using the validation
controls in IE doesn't work anymore. I have a page with two text boxes,
each of which has a RequiredFieldVa lidator and a
RegularExpressi onValidator. When I click the Button I see the client
side error message for a second and then the page does a postback. I
have read a few blogs about other people having this problem, but
nobody seems to have an answer. So, does anyone have an answer to this
yet?