Ashover, I'm having similar problems. I can't attach files to my Yahoo or Hotmail e-mails and can't upload files to my Yahoo briefcase. I also can't upload attachments with newsgroup posts! I'm in the Notts NG17 area!
See my post here:
http://www.cableforum.co.uk/board/sh...ad.php?t=16465
I also wondered about the upstream speed being lowered to compensate for the higher downstream speed! I'm on the 600k > 750k service.
I tried using the speed test at adslguide but it won't complete the test, just sits there saying:
Starting speed test...
Do not use your connection until the test has finished.
How do I test my upstream speed online? I DO NOT want to download programs or plugins.