Hello! Sometimes simple solution is very hard to find! I called today to Renderosity and they sent me e-mail about my problem: Subject:Red X problem Try the following, it usually clears these kinds of problem up: Log off from the site and close your browser. Check that your computer's time and date are correctly set. Restart your browser, delete all cookies and then come back and log into the site again. 99% of the time this will clear the red X problem. Thank you, Stacey Renderosity Store It happened that my date was incorrect! Now everythings is fine. Thank You all for help anyway! Greetings...............Wojtek........