[Bish0pQ]

Haven't had this before, might be a local issue? Have you tried if it also occurs on other forums (if you are a member on other forums)

[pvnk]

Update: my scripting attempts proved more or less futile, but I found this thread and it looks like the color picker could be at fault.

Regarding your other problem, check this link and see if you have access.

nope!

[U P]

This has happened to me on a few other forums
It's only appeared to happen to me when using MyBB? So it might be a problem on their side.
I'm not 100%, though.