I have a few plugins that have to do with writing/editing posts, such as Scribe SEO, WordPress SEO by Yoast, InboundWriter, etc. They have created their own columns on the post list. The issue is obvious in the screenshot if you click the link below to go to Twitpic.
I have tried disabling these plugins, and then re-enabling them one-by-one. I've done the same for all of my plugins too. There doesn't seem to be any one plugin conflicting. It looks like the issue is with the padding in the table.
I have been looking for the file to edit in the wp-admin directory but haven't got anywhere.
Can any of you tell me which file I need to edit to correct this issue?