Look at Type > Glyphs to see whether é is in your font.
Type é and watch the Glyphs panel while you have é selected.
What shows up?
If there is something wrong with the font you will need softwarwe such as FontLab Studio to correct the arrangement of the font table.
Yes it is and it is in the correct spot. It always worked with the entire CS3. And it does work in Indesign/Photoshop CS6 and Pages. Only in Illustrator CS6 it acts funny. So I wanne type an é with option+e plus e. But already whey I press option+3 it turns from EuroComic to MyriadPro. After that I can select the text box and turn the entire text into EuroComic and the EuroComic é is back. So it's in the correct spot and present in the font.
Illustrator is too smart.
With other fonts like Arial etc. I don't have that problem.
Arial contains a separate acute character, and I bet your EuroComic does not. Illustrator tries to 'protect the stupid user' by automatically changing the font because it thinks you are trying to insert a character that is unavailable in the current font. (You are, but only for a short while.)
Go to Preferences, Type, and un-check "Enable Missing Glyph Protection" to fix this.
Wow, that worked!! But why is it thinking the é isn't available in EuroComic while it is? And at the same location as every é in other fonts? Or is it first looking at that special separate é character location like in Arial and when it doesn't find it there uses the more general location of é like where it is located for most fonts? (when 'enable missing glyph protection' is deactivated that is)
why is it thinking the é isn't available in EuroComic while it is?
Exactly what I said: "it thinks you are trying to insert a character that is unavailable in the current font. (You are, but only for a short while.)"
It has nothing to do with the 'location' of "é" -- this is the same as in every font. It's due to the way you can type in accented characters in Mac OS X.
You type an acute character; Illustrator receives it and switches immediately to the fallback font (Myriad Pro). Next you type an 'e'. Your friendly Mac OS, watching over your shoulder, removes the acute accent and replaces it with an é. Illustrator doesn't notice this and leaves the font changed to Myriad.
ok, but if it has nothing to do with location as it is the same in every font, why is illustrator thinking the é is unavailable in EuroComic while it is thinkg it is available in é? Why would it think EuroComic doesn't have a separate acute character?
Please read again what I say above about how an accented character is entered in OS X.
Illustrator doesn't think the é is unavailable, it thinks the single acute accent ´ is unavailable. And it is correct in that, for EuroComic, so Illy changes the font to Myriad.
I have seen this too in Fonts that are made by non-professionals.
One way I found to bypass this is to type the text in text editor and paste it then into Illustrator.
ok, sorry, I misunderstood So can you tell me where that single acute accent ' supposed to be located in a more normal font like Arial? Curious if indeed at the same location that accent is missing in EuroComic
Edit: I'm guessing U+0027? I've compared that with EuroComic and while it has a ' character, the glyphs panel says it's located at U+2019. Though it's also between & and (. In EuroComic it skips from U+0026 to U+0028. With U+2019 in between. Still the same accent character but under a different U code. So I'm guessing the mac is expecting it to be at U+0027, doesn't find it (cause somehow it is set in the font as 2019) and causes those problems?