Web dynpro application changes not visible

Hi,

I have created a web dynpro application, that uses BAPIs, to persist data in R/3. SLD and JCO seem to be configured ok. Whenever I make changes to the project, build and deploy the application, I CANNOT see the changes. All I see if the application the way it was initially deployed. I tried this on the remote server and laptop, and results were no different. What is causing the changes not to take effect ? Any help is greatly appreciated....

Thanks !

Sri