We have changed from Inventor 2014 form 2010
While opened old inventor drawing file '.idw' in 2010 all my earlier sumbols such as dia, depth evrything changed to alphabets such as i,j,etc..
Kindly resolve
Find the below attachment
You are missing the symbol font, AIGDT. If you uninstalled Inventor 2010 after installing Inventor 2014, it may be that the 2010 uninstaller removed that font.
I've attached the font file-- place it in the fonts folder on your system (in my Windows 7 system it is C:\Windows\Fonts\), then reboot.
This information comes from searching on the Autodesk knowledge base, from this article: Special characters and symbols are not displayed correctly in drawings. However, the path shown in the article is not correct, at least on my system.
Sam B
Inventor 2012 Certified Professional
Inventor Professional 2015 SP1
Windows 7 Enterprise 64-bit, SP1
HP EliteBook 8770w; 8 GB RAM; Core™ i7-3720QM 2.60 GHz; Quadro K4000M