Chaching issues

is it possible that the server/browser caches the output and the code changes in php are not reflected. I am having wierd problems with fixing the code, and it often not responding for a while. When I cause a parse error, the php engine does inform me, however it seems to act up on bug fixes with variables and calulations. Is that possible? Thanks in advance. R. ________________________--__-______-______________ eat pasta type fasta