Thanks, No, we've had this problem on systems running AVG Free antivirus, Symantec 9 and 10, and ISS SiteProtector with Kapersky AV. So, it seems to occur independent of which AV software is installed on the PC. /John Resotko >>> Clifford Beckett <[log in to unmask]> 5/9/2007 12:52 PM >>> Hi John Resotko and NAG, Are you using NOD32 antivirus? I have had the same symptoms when I had a conflict between Labview 7.1 (which has an Internet connection service) and NOD32 antivirus's Internet monitor service called IMON. IF so, try turning off the IMON service. IF that solves it, there is an advanced IMON setting to disable it for specific programs. Cliff -- Clifford L. Beckett office: 517-355-4659 Electronic System Designer cell: 517-449-8226 A411 E. Fee fax: 517-353-0789 OMM Department email: [log in to unmask] Michigan State University web: www.obl.msu.edu East Lansing MI, 48824