Netscape and Links

I'm wondering if anyone has run across this problem. I am passing values through my scripts using PHP4 (recently migrated from PHP3) and everything works great in IE - but Nutscrape for some reason isn't passing the values correctly. Has anyone else run into this sort of problem? Sorry for the scant details, but I've checked the scripts over forward and

backwards, and can't see anything obviously wrong with them.    =0(

Thanks in advance, Gavin