I have a new installation of a Windows 2008 R2 standard server an 16 windows 7 pro 64 bit workstations. The workstations reguarly have a red x on the mapped drive (P:). This causes problems in one of my programs. I know they are not losing network connectivity because I have a SQL based app on the server and that remains connected with no issues. I even have a red x on the P drive that is mapped on the server to itself. Please help.