Hi everyone – so this is kind of a strange occurrence so I’m hoping you can give me a little insight?
I have Thesis theme on WordPress, and every time I click on “Thesis Options” (lower left hand corner of the dashboard / admin area), my browser freezes and stops responding. I’ve tried this in IE and Firefox – same result. I can click on “Design Options” and it works fine. This has been happening since a couple days ago.. I originally thought it might be just a fluke, but now that it’s persisting (on two different computers), I’m a little worried.
I have the latest Thesis (v. 1.6) and it’s never given me a problem like this before. Mrs. Micah suggested that it might be because something on that page got corrupted in a way that stops the browser from wanting to load it. She suggested I I re-upload the Thesis core files (not custom) and overwrite the old core files and see if that makes a difference.
I’ll do that, but wanted to reach out and see if anyone has an idea or have experienced what’s going on here. I must have genius Thesis folks among my readers, right? 
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I'm no expert (that would be Mrs Micah) but some things to consider: What version of WP are you running? Are you using any new plugins or did any update recently? Could it be something on your server?
I had a freezing up problem exactly like this and thought I had a problem with my webhosting as everytime I tried editing my thesis site it crashed my browser…
Anyway after much frustration and countless hours trying to source the fault I removed a piece of javascript inside => Thesis Site Options =>Stats Software/Scripts area and voila my frustrations ended.
I think I had entered a piece of javascript coding for a popup there or something and thesis didn't like it very much and corrupted the files somehow, anyway hope this helps.
Robert