Problem procession a form

Hi everybody, I have a problem with a script processing a quite large form. So I'm submitting a form with several fields and 5 images to be uploaded (if it matters), using POST, and the action script does not return anything, except a blank '<html><body></body></html>', which I think is added by the browser. I added an 'echo' on the first line of the script for test and it's not being displayed. Also there are no 'exit's in the script that could finish the execution. I had this problem before (on another host), but I can't remember how I fixed it. Can someone help me? Thanks in advance, -- Florin Dumitrescu