IE8 Local Intranet can't turn off Custom!

Hi
Just wondering if anyone else has had this problem. I run Vista Ultimate x64 with Sp2 and IE 8 installed with an ethernet wired BT Broadband connection in UK. Past couple of week, my connections completely gone to dross - have to reboot ADSL modem constantly and BT tell me there's nothing wrong on their end, it's in my PC.
I have just noticed that in the Tools/ Internet Options/ Security/ Local Intranet that i'm set to custom and no matter how many times i try and reset & apply, it will not change from custom!

Anyone any idea if it's something to worry about or maybe a glitch in my build/ updated IE? Looked on Google but nothing there.

Thanks

Re: IE Local Intranet can't turn off Custom!

mine is set to custom as well....no problems with IE 8. check your mac address on your routers web based page. if it's unchecked, check it and then clone it and save settings then reboot and see if that doesn't fix it.