Jan –
How did you fix the problem for Thomas? I have the same error on my site. I can install and use coppermine fine but when I try using your program it give me the “Connection successful, but table not found. Invalid prefix ? (Not sharing the connection with WordPress)” like Thomas had. Maybe there are more of us with the same problem.
Bump – Anyone else have any ideas?
There is no mention of “calendar” in my theme’s “style.css” file – any other ideas? As I mentioned I added the tag “get_calendar” to my sidebar because it was not there by default.