(Also posted in ACAD 2005 group) We use Windows 2000 Pro and we rec'd a windows update today and followed the directions listed in: [URL]http://www.microsoft.com/security/bulletins/200409_jpeg.mspx[/URL] Now when we open client dwg files that contain macros, or try to insert a client file that contains macros, or type VBAMAN we crash out of Acad with the message: FATAL ERROR: Unhandled Access Violation Reading 0x0004 Exception at 30b1f00ch We have tried recovering dwgs, dxfout and back in and can't open these dwgs. If we open dwgs from the same client that we rec'd months ago that worked ok then, we crash now. Other machines don't have this problem, only the one we updated. We have uninstalled and reinstalled Acad and Sp1 and it still crashes.