DEKHO Bookmarks - How many & where?

[SimonPook1]

Quick question that I cannot find an answer to, is there a limit to the number of Bookmarks that a user can set in DEKHO, shared & private?

Where are these bookmarks saved to exactly?

Have a client who is using the bookmark feature quite heavily & is experiencing what looks like some form of corruption in the text she has used to label the area of some features she has created. My knowledge of DEKHO is very limited, but I'm more than a little concerned as to how & why her data has become corrupted. I am not aware of this happening previously to anyone in this organisation. 
With the software no longer supported, most of the resources that existed appear to have gone, so I'm flailing around in the dark with this.