This post gave me a good idea
In my ASP.NET code I was generating a long url with lots of ....&i=23&j=2343&k=232....
Internet Explorer was very strict at not line breaking this - so I need to encourage it.
Using the post above I decided on:
Seemed to work well :)
Note to self - it's time to get a proper tool to post to blogger - this HTML code formatting is doing my nut in!