Hi Marty, The "ctrl ." is a short cut for the abort button. hide the Abort button under (in LV 6.1)
VI Properties>>>Windows Appearance>>>Customize>>>Show Abort Button This property can also be manipulated programaticaly in LV 6.1 using a property node configured for TB.ShowAbortBut This will allow you to allow this operation for privledged users. The same VI setting is available in LV 5.1 but I do not remeber if it could be manipulated programaticly. Trying to help, Ben <a href="http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=261&HRedirected=True&HUserId=101_3529&RFORMNUMBER=6">Ben Rayner</a> <a href=" http://volt.ni.com/niwc/common.jsp?page=products_certification_cld&node=10638"> Certified LabVIEW Developer </a> www.DSAutomation.com
