Vladimir,
Thank you for letting us know about this problem. We will work to get it resolved.
As a work around, I recommend that you use the built in RELMA help feature. It contains the same information in the user manual but in a more interactive format. You can get to the help by clicking the “?” button on either the search screen or the mapping screen. You can also access the help by pressing the F1 key.
Happy LOINCing,
John