Issue with Amazon.com redirects and back button which Bypass fixes

[MR_yeoman2]

That didn't work. I'm really scratching my head over what I could be doing differently then everyone else.
I upgraded to IE 9, which didn't help. I tried logging out of Amazon, didn't help. I have flash installed but disabled, same with silverlight, enabling them didn't help. But if I bypass proxomitron it works. I just downloaded a new copy of 4.5j and run it with all default settings and it still happens. If I run Mozilla though the same proxy it works.
I'm just baffled.
Ok, to baffle me even further, if I add *.amazon.com to IEs proxy Settings Exceptions, I Still have the same issue. Amazon looks fine but the back arrow still doesn't work, but bypass fixes it. So Amazon must be using another site.
Ok, looking at the log window there seems to be two gets to ad.doubleclick.net. But my browser history clearly says the two ghost pages on amazon.com.

+++GET 303+++
GET /adj/amzn.us.dp.watches/casual;sz=728x90;u=77f... ...e=2? HTTP/1.1
Accept: application/javascript, */*;q=0.8
Referer: http://ad.doubleclick.net/adj/amzn.us.dp...sz=728x... ...7;z=296;tile=2?
Accept-Language: en-US
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Accept-Encoding: gzip, deflate
Host: ad.doubleclick.net
Cookie: id=cb0562a39000096||t=1308785314|et=730|cs=czyxvjtk
Connection: keep-alive
URL-Killer: URL killed
BlockList 304: in AdList, line 71

+++GET 304+++
GET /adj/amzn.us.dp.watches/casual;sz=300x... ....tile=1? HTTP/1.1
Accept: application/javascript, */*;q=0.8
Referer: http://ad.doubleclick.net/adj/amzn.us.dp...=300x25... ....z=296;tile=1?
Accept-Language: en-US
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Accept-Encoding: gzip, deflate
Host: ad.doubleclick.net
Cookie: id=cb0562a39000096||t=1308785314|et=730|cs=czyxvjtk
Connection: keep-alive
URL-Killer: URL killed


Could these be the issue?
Nick