I just tried and was able to log-in. It sounds like you need to set your web browser to accept cookies from Ulead's web page.
For IE go to Control Panel, Internet Options. Then click on the Privacy Tab, and then Advanced. In the Advanced Privacy Settings, make sure you have the box at the bottom (Always allow Session Cookies) checked.
For Firefox, go to Tools>Options, then click on Privacy>Cookies. Make sure the box is checked: Allow sites to set cookies.
Ron Petersen, Web Board Administrator