Logon prompt when openning forms in browser

Hi ,

i recently upgraded 10gAS 10.1.2.0.2 to 10.1.2.3.0

When am trying to open forms in browser it was promting me for username,password,datase string,as it was given in formsweb.cfg file

When entered them it was loging into forms.i can't figure out why doesn't taking from formsweb.cfg file

here is the entry in  formsweb.cfg file am using

[smart]
width=1024
height=740
baseHTMLJInitiator=smartbasejini.htm
separateFrame=true
splashScreen=no
lookAndFeel=Oracle
logo=/images/ria_logo.gif
pageTitle=Oracle Forms - SMART Application
imagebase=DocumentBase
userid=user/pass@tdt1
form=MAIN_PAGE.fmx

i stuck on this about 5 days,need to be resolved ASAP.