There is an incompatibility with new versions of Chrome and CKEditor whcih is used in VBulletin 4 (and possibly other board software). Even with the hundreds of dollars everyone gives VB all the time, they refuse to support vB4. Only vB5, which has drastic changes... so much so many board maintainers (like myself) don't want to switch to vB5. Its almost a facebook/twitter type feel instead of a traditional forum. I'm sure we can modify it to feel more inline with the current experience here, but thats a bunch of work...
I did my own tweaks to make it work for our theme and my personal preferences, but the gist of possible fixes is here: (https://www.vbulletin.com/forum/foru...rking-on-reply)