HTTP Error 413 on Blackberry Bold?

When searching the internet on my BB, whether using contract WAP or a WiFi connection i regularly get this error saying the request entity is too large. Have compared most of the settings that look relevant with a friends and he can load webpages without any problem - under options and memory it claims that there is 839MB device memory and 939MB on the media card but still there is a problem.

Bully
February 2010