I think it isn't problem too
I made tests on my site (I use jQuery in newest version, compatible with IE9):
- when I open page first time, everything is ok
- when I open subpage JS doesn't work (Permission Denied in scripts monitor)
- when I reload subpage using CTRL+F5, JS works fine, without any problem
- when I back to main page and open subpage again, JS doesn't work again
So it looks like on each page...
On IE8, Firefox 3/4, Chromium 12 and Opera 11 everything is ok.