Images disappear after changing table width and # of thumbnail columns

[scrambled egg]

After uploading images to a category, as admin of course, I changed the table width and the number of thumbnail columns to a higher number.  As soon as I did that, the images disappeared. Then I went back and put in the previous numbers, and the images appeared again. 

[Joachim Müller]

After uploading images to a category

That's nonsense. You have been explained in a lengthy thread that file uploads don't go into categories, but albums.

I changed the table width and the number of thumbnail columns to a higher number.  As soon as I did that, the images disappeared. Then I went back and put in the previous numbers, and the images appeared again. 
[/quote]Posting a link might help for a start and what exactly you changed from which value to which. If you enter a nonsensical value, this might have happened.

Joachim

Side-note: you're asking a lot of questions in rapid succession. Although this is a support board and you're welcome to ask questions, we ask you to stick to one change at a time and to create your requests for help with more common sense in mind and prepare them as good as you can: a link to your gallery is almost always mandatory. Describing what exactly you did is important. Attaching screenshots might help as well to illustrate things.