Just a guess, but you might look into these KB articles....
Choosing a New Printer Resets Printer Settings
http://support.microsoft.com/?id=209757
Height Property Setting of a Form or Report's Detail Section Is Ignored
http://support.microsoft.com/?id=208560
Changing Printer Port Resets Printer Setup Information
http://support.microsoft.com/?id=208912
Note: Don't let the "Applies To" list fool you (Access 2000)....the same issues may apply
to a later version of Access as well.
Which version of Access are you running, and have you installed the latest service packs?
Tom
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I have created several labels using labels wizard. They will print correctly when I make
the labels they print properly but the next time I try to run the same item, the label
size will have changed and they obviously don't print properly. I can sometimes open the
same label several times with correct results but then one time I'll open it and it won't
have the correct size info. I have tried saving it in design view and again before I
close. I don't know what I'm doing wrong