I have this odd problem that only affects Firefox on Vista(my version is 3.6.13 on Vista. The same version on XP seems to be OK!).
I have a script that outputs a simple page with an onload alert and a redirect to another URL. Like this for example:
<body onload="alert('test'); window.location.href='http://mydomain.com/test.html'">
What happens a lot (but not I think all the time!), is that the alert box is blank, until you move your mouse.
Any idea how I can fix that?
As I say, this is ONLY in Firefox. (Another difference between Firefox here and Chrome, IE, Opera and Safari is the other browsers display the new page content behind the alert box immediately, whereas Firefox only does so AFTER you press "OK" on the alert box. I wonder if this is a clue as to what's going on?)