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Well, it is already pretty helpful to know that the function uses GPIB, but it would be even more helpful to see what is actually inside that VI. Most likely it uses the old GPIB function interface and there error 6 means actually that the GPIB IO operation was aborted. That is a somewhat generic error for GPIB operations that the GPIB controller detected some kind of error and has aborted the transfer because of that. Check out this document for a list of possible GPIB errors and what it could mean. As to posting a photograph of a screen shot, well, posting the actual VI AND subVI would have taken less work for you and would be about 100 times more useful to be able to see how the VI that causes the error is built up. We still only can guess that it is probably the GPIB function causing that error.

Error 6 is a permission error. That can have many reasons and without knowing which function gives you this error there is really not much we can do to help you. Most likely it is a file permission error. So maybe you login with a different user than before or your system administrator changed the access rights for your user account. By the way: You posted in the wrong forum too. This seems to have nothing to do with OpenG functionality at all, so should have been posted in one of the more general forums.