include files don't work???

Hi All, This is strange. I've got some functions I want to include in my PHP documents. Well, I can never get anything to work if I include the file that holds the functions, but, if I insert the functions into the PHP document in question, everything works?? Now, I've checked to ensure that the path in the include statement is correct and I never get any errors about it not being able to find the include file. Also, I've ensured that the functions in the included document are enclosed with <?php ?> tags at the top and bottom. So, I'm looking for other possible gotchas or bugs in the include statement?? Thanks in advance for any help. I don't know what I could be doing wrong. ....Brad