mssql_fetch_array with large databases

Hi I have an NT with MSSQL 7.0 working with php4 and mssql7.dll from swwwing.com When i execute a do while cycle with a fetch_array which results in many rows the browser just keeps working in background never reaching to an end. So the results page is never shown. This does not happens when the fetch returns a small number of rows. Seems like there's a limit to the number of rows that can be fetched. With php3 and mssql.dll we didn't have this problem. Can someone give a help with this.... Thanks -- Nuno Emílio nuno@ideianet.pt ----