Something fishy going on PLEASE HELP

FROM : Bastiaan
DATE : Wed Aug 30 12:13:12 2006

Dear Reader,

I was experimenting with opening a datafile at startup of my 
application, something went wrong "it continued to open windows after 
startup" so my screen was full of windows in no-time. Well i then 
removed the code responsable for this effect and saved my Xcode 
project again.

I would say that should be enough to get it working as it would have 
before adding the lines of code!

But then i discovered that after compiling it still made copies of 
the window at startup. :S

I then checked if i wasn't forgetting something in my code, well 
conclusion its as clean as it can be! Absolutely no trace to be found 
of the earlier mistake.

Doing another test i copied the build file to another Mac that i own 
and there it works perfectly!!!!! i get just one window and can do 
the things i have programmed it to do. Meaning the compiled 
application worked perfect and there are no mistakes copied during 
compilation.
Then i thought well lets build a new Cocoa Document based project 
(empty that is) and that one worked perfectly, so my conclusion it 
isn't Xcode thats corrupted or anything.

So now i am thinking can it be that my earlier mistake is cached 
somewhere on my machine and instead of starting the newly compiled 
programm it keeps using the cached one!

Changing the name of the build application doesn't work either, also 
a restart doesn't work (waited 30 seconds before rebooting just to be 
sure my memory is empty again)

So my question did anybody else here experience similair effects and 
how do i clean up this mess, where is it cached????

Any Help is HIGHLY APPRECIATED!!!!!

regards Bastiaan