Certain situations such as an unexpected disconnection or multiple users trying to connect to a FrontPage web simultaneously can prevent you from logging into your account. When this occurs, two files are modified (frontpg.lck and service.lck) and access to the web is denied.
To correct this problem, select the "Unlock FrontPage Web" radio button and click "Next". The _vti_pvt/frontpg.lck and _vti_pvt/service.lck files will be deleted and access to the web will be restored.