There has been some discussion on the list at various times about systems, particularly bank systems, that *insist* that you run MS IE.
I have installed a proxy that might solve your problems. It does three things: 1. It filters out banner ads, at present only doublclick.net, but let me know any other domains you would like fitlered. 2. It anonymises your request by removing the Referrer and User headers. It does not remove Cookie headers because these will probably be needed, but I can set up another one that also removes cookies if there is a demand. 3. It forces in a User-Agent header that lies and says that it is MS IE 5.0. This will solve problems at the server end, but not those in Javascript at the client end. Nor will it help if the bank software is trying to use Active X or other MS proprietary stuff on the client.
You can find this proxy at proxy.webwright-uk.com port 8000. You are welcome to use it, but I give no guarantees as to fitness for any particular purpose (etc etc etc). BTW it does not cache.
Please let me know what works, what does not work. When it is judged stable I will post the code.