If your talking about using Open URL from a button, did you try to leave everything off at the end.... & "z=1&output=svembed&iwloc=0"
I don't have that in my Open URL and it works fine.
Thank you for your reply
I want to use it as a WebViewer on a layout, so i can print the map for a client
And i don't think that the code at the end has to do with the yellow bar
Is the web view on the layout too small? Do you have the web viewer setup box checked to Automatically Encode URL? If you check out the Contacts Starter Solution (in FM12), the web viewer uses a Custom Function and names the web viewer "Map 1", and references this in the function.
Or you could post a simple file containing the web viewer layout and someone will take a crack at it.