Tasks not working

I've installed PP with no problems. I'm php programmer, so it was a piece of cake. I set up the enviroment. Installed the app via public/install - everything OK. Created bunch of projects. And then realised: When I try to add a new Task i got only empty screen without menu and stuff...

screen
No error messages, anything. Any ideas?

Well, my first instinct is to think that maybe you have a corrupted file on your server. Try unzipping the file directly on your server instead of locally and then uploading.

Otherwise, enable the debug option in the config.php and also check your php and apache logs for any oddities.