Problem sharing an application

Problem sharing an application

Hello

I've been developing an application but have run into a problem with sharing.
I have shared all the forms and views a user would need to access and use the application but some of the shared forms do not display correctly when a user attempts to open them.
The problem forms are meant to be opened when a user clicks a custom action in a view. The custom action builds a URL query string that opens a form and display a specific record. The URL displayed appears to be correct but instead of displaying the form, the applications menu bar appears twice above a white screen. No error messages are displayed.

The URL query string builds correctly and the form and data are displayed correctly when logged in as developer.

I'm currently developing in the free version but if I can get past this problem and demonstrate everything will work correctly then we'll be switching to a paid version of Zoho.

If any one has any ideas how to resolve this problem I'd appreciate it.

Thanks

Simon