Qt4 plugins using Visual Studio

Hello,

I'm trying to create an application that uses dynamic plugins, using Visual Studio 2005, without the Qt Visual Studio addin. The plugins load just fine in debug, but in release my app fails to load them, although both the main app and the plugins are either in release or debug; i'm not trying to load a debug plugin using a release app and the dir where it tries to load the plugins is the right one. Even a small test app is unable to load them in release. I googled the problem but i couldn't find a similar problem. I tried a lot of things with no success.
Any ideas or support is apreciated. This is a very important project i hope someone can help me.

Thank you,
Memphis