I’m working on a new website (http://www.librairie-epona.fr/boutique).
I installed TeaserBox today and encoutered the same problem you discussed about in several topics.
I followed the solution you suggested but it did not work.
First I edited all my attribute-set and add a General attribut-group.
It did not change anything : no TeaserBox tab in the configuration part, problem with the cache management…
Then I tried to reinstall TeaserBox in the admin but I still had the “Wrong Attribute Group ID” message.
Then I uninstalled TeaserBox in the admin.
No problem of cache management anylonger but a new problem : I could not edit my product.
I guess it was because I did not have cleaned my database....
So I connected to PHP MyAdmin to execute the request you explain with no success. The request did not work.
DELETE FROM `mageav_attribute` where attribute_code like ‘teaserbox%’;
DELETE FROM `magcore_resource` where code = ‘teaserbox_setup’;
DELETE FROM `mageav_attribute_group` where attribute_group_name = ‘Teaserbox’;
(mag in a prefix in my database)
This code is it ok ?
I must confess I am not good at modifying SQL code and maybe that’s the problem… I have never done this before.
So it’s 2:34AM now and I am going to bed hoping I’ll soon get an answer… I would be so gratefull for it.