This might be caused by having more than one font installed with the name Helvetica. Can you change it to something else, then change that to your Helvitica Regular?
Does it help to export to .inx? Remove minor corruption by exporting
Hi! Thanks for your answer.
I am using Windows XP (SP3).
I tried to export my INDD file (ID CS4 format) to an INX file.
But that also made InDesign crash (perhaps because of the font thing).
Unfortunately I can't change the missing font of the text because:
* I can't see the text frame that contains the missing font.
* InDesign crashes when using the "Find Font" function.
However, this is not a big problem, I can still work with the file. But I will
always get the annoying warning about the missing font, and I prefer to
have no errors in my INDD files.
Try removing all Helvetica fonts from the system. (make sure you have original media to reinstall the one you want to use). See if you can run Find Font witout crashing and change to something else, then reinstall the Helvitica of choice (and only one with the same name) and try again.
You may also have some other corrupt font. What was the on you successfully changed to?
I'd do the testing on a copy, just in case.