The text assigned to a hotspot looks like Morse code, only the top pixels seem to be visible. This is a part of a screenshot taken from my virtual machine:
The panorama can be found here.
Asking the user to update is not really a solution, very few will ever mention the issue, many will just declare the panorama and/or website as "rubbish" or "useless"... So I hope this is a known issue, and someone has found a way to get around it.
Any sort of help would be really appreciated!
Best regards
Harald