Another follow up ....
This grey bar thing seems to be happening a lot more ....
I selected a pic from a post that had the bar, which was supposed to be a watermark. I then physically went into the server via FTP and looked at the pic as it's stored in the mod's cache file and it looks fine (see pic below). However, if I look at it through vBulletin's attachment view function it has the grey bar.
So, I went into the mod's
Cache Stats function in AdminCP and checked the "yes" box, then ran it. A bunch of processing of files occurred saying "Ok", then it returned to the AdminCP. Upon viewing the pic now through the vBulletin attachment capability, the pic now had the watermark and the grey bar was gone.
Regards,
Doug