Over the last week we have upgraded 1400+ workstations (Win 7 Pro 64bit) to Novell Client 2 SP2 for Windows (IR4a) from (IR3). Over the last couple of days getting more and more reports of mapped drives not working and getting error code "c00000bb". The mapped drive that fails the most is the Home Directory (H:) for all users. The server that houses ALL home directories is on is a Novell Netware 6.5 SP8 (ESXi 5 virtual server) and has worked fine under the old client (IR3) for months. I downed and restart the server last evening as a test and this morning still receiving multiple reports of the error occuring. If the drive doesn't map properly and the users use the Red "N" to login a second time the H: (Home Directory) seems to map at that time. We are using that as our workaround for now. We are a K-12 School District and are wondering if this is an issue anywhere else. Also we seem to be having more and more issues with our Microsoft Office 2007 suite after the client upgrade. Files from the nework won't open or refuse to save to the network, Excel is the worst offender with Word a close second. I have seen these type errors since old Win98 client. Any ideas are welcome......