Would someone please do me a favor in 5.15:
Go to the eprescribing dropdown menu. Open up "pending renewals". Now try to close the window by clicking the little x in the top R corner. Did the window close?
This worked for me both on my home test system as well as live in the office.
Home is Win7pro office is xp, home is database on computer, office is peer to peer network. All are 32 bit