Calling reports from forms not working

Friends,
In the forms we have mentioned the report server details in web.show document.
when we call the report from forms, its not working...
the address in the address bar of IE6 shows

http://172.16.7.5:7778/forms///http://172.16.7.5:7778/reports/rwservlet/.........etc.....

how come these forms and reports servlet are mering?

if we remove http://172.16.7.5:7778/forms/ ---- then its working....

if have mentioned reports_path in default.env

where i am making mistake?

thanks