[PHP-WIN] Browser problem

[Sichta Daniel]

Hi,
 
cfg:w2k,IIS, php4.06.
When I'm using IE as a web browser on my developing sites everything is OK.
But when I try to use NN or Opera it always want's from me user name and
password. Does anybody know what's problem ?
 
Dan
 
IMHO: I think it's in IIS cfg, but not for sure !!!