I noticed today that if I am in a vendor file and click the open PO icon, some open po's are not showing up.  Some open po's show in the appropriate vendor, but at least one currently open PO does not show up.  I looked at the grid in Maintain grid and the po is listed there just like all the others so I don't really understand how it doesn't show in the lookup screen.  Any ideas??
 
Also related to the purchase orders, when looking at the list of open po's, some of the vendor names are in all caps and some are in normal type.  What is causing them to change to all caps?  so weird!