I found out a little more info on this monitor. It's a refurbished 2407WFP-HC revision A00.
After a quick google search, I discovered that this revision has been known to have some ghosting issues. I don't game, but I do plan on watching movies on this monitor - will I notice the potential ghosting?
Also, since it's refurbished by dell, could it be that dell upgraded the firmware or whatever they do to fix the problem?