I know many of us use Trimble GNSS and use post processing to achieve desired levels of accuracy. Earlier today Trimble became aware of a problem downloading CORS base station data from the NGS/NOAA servers through Trimble Positions Desktop add-in. At the beginning of post processing, Position users will see error messages for the failed downloads. Trimble is not sure what may have suddenly caused this issue to develop. They are currently investigating and hope to have a patch or solution soon. This issue is not limited to just their Positions Desktop Add-in but is also affecting Pathfinder Office and Field Inspector. In the meantime, a suggested workaround would be to note the URLs for the attempted downloads and then download the files manually through a browser. You can then setup a new post processing profile for those specific files. Trimble will be posting new information concerning this issue on their Development Team Blog <http://r20.rs6.net/tn.jsp?f=001HpyRjIWU2DFshQvGfY0qDmGGLRy1QsKgkBoB2OnUb6mR 88CdHOJ269uBSIfPmRPw1cYa3uNjVE7-70-MyNnevDNG6Rc3IWbCzTpgBMPjStKHVjQjYOndeEkF gdeQdeJtYUq2NsG_pbrT42hrNIP1JpqeYkpLXAQLkIMsRLG804jkKBQ5mV5cscHz-E43XQFmjEK3 NqUR-gg=&c=vHQPxd-2Ss9uT12SAKkogDGtdTdpdYUONPUHq52mFE_3qOfAOE8TOA==&ch=rCBJo 35Js0n0R5Jwb8PrbFuN0UtbhW89Tt4H8KDyw2THm8H5j-Yxpg==> . Your Trimble Dealer should also be able to provide you with information as it becomes available or to help you with the workaround. Tripp Corbin, MCP, CFM, GISP | Chief Executive Officer <http://www.egisassociates.com/> eGIS Associates, Inc. <mailto:[log in to unmask]> [log in to unmask] | www.egisassociates.com 678-710-9710 ext 21 | 866-304-3864 Fax Esri Certified Trainer | Esri Certified Desktop Associate ------------------------------------------------------------------------- This list (CTGIS-L) is an unmoderated discussion list for all CT GIS Users. If you no longer wish to receive e-mail from this list, you can remove yourself by going to http://listserv.uconn.edu/ctgis-l.html