Microsoft no longer providing online forums for support (as far as I can tell), I'll ask here because I can't think of anywhere else. I have a Win7 Pro 64 bit desktop running Office 2010 Professional. Today I needed to do a mail merge, letters and envelopes, in Word 2010. This was the first time I ever tried that. My data was in an Excel 2010 spreadsheet.
The letters printed beautifully. When I tried to print the envelopes, the first thing it gave me was a little printer configuration window. In the window, I had to change the way the printer handles envelopes, because my elderly HP Photosmart C7280 printer doesn't handle them the way Word thinks envelopes should be handled. Having changed that, I clicked on the OK and immediately got this error:
In order to apply the selected envelope options, Word must delete the current contents of "<filename>." Any unsaved changes to this document will be lost.
I couldn't get away from that, so I clicked "OK" and my mail merge document vanished, leaving only headers and footers. There was nothing to print envelopes from. I could not make it work. Does anyone have a solution for this?? Has anyone ever seen it?