Thanks, all of you, for the clear explanation and alternatives. I understand the issue now.
That information is very timely: the index I was considering adding -could- have changed on the secondary file. I would have been chasing that ghost for days :) This message and all attachments are intended for the use of the individual or entity to whom or which it is addressed and may contain information that is privileged, confidential, and exempt from disclosure. If the reader of this message is not the intended recipient or the agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this e-mail in error, please notify me immediately at the number listed above. U.S. export law as contained in the International Traffic In Arms Regulations (ITAR) and the Export Administration Regulations (EAR) may be applicable to any technical information submitted with this communication. This technical information is not to be placed in the public domain, exported from the U.S., or given to any foreign person in the U.S., without the prior, specific written authorization of TeligentEMS LLC and the U.S. Department of State or the U.S. Department of Commerce as applicable. _______________________________________________ U2-Users mailing list U2-Users@listserver.u2ug.org http://listserver.u2ug.org/mailman/listinfo/u2-users