If you omit the capasity for a room, you get an error message.
I get the same thing. Error handling really needs to be increased in this system.
You seem to have CSS turned off.
Please don't fill out this field.
This has been fixed in the next version. If capacity isn't given it
will default to 0 and not report the SQL syntax error message.
Fixed in cvs branch mrbs-0-9-1xp, to be released soon.