When I use the insert link button on the visual editor, the only thing that appears is a blank box with no information. I cannot even close the box by clicking the "x" in the upper right hand corner. The box follows my mouse around, until I am forced to ultimately close or reload the page.
I was having this problem in both Firefox (18.104.22.168) and Safari (3.0.4) both on a mac.
re-uploading the Tiny MCE folder, as suggested in this topic:
fixed the problem on Safari; but the problem is still persisting in Firefox.
I also tried clearing my cache after re-uploading Tin MCE, but no dice.