AutoCAD LT (regular) creates educational version drawings

[alice.melita]

I 'm having some problems in exchanging files with my colleagues.

We all use AutoCAD LT 2014 with regular license but it seems that my computer is generating files that other users read as created with an educational version. I don't have any problem in opening/printing my drawings but it has become impossible to exchange files.

Is it a virus? How can I fix it? 

Thanks in advance.

Alice

[pendean]

You probably added a block, used an EDU file as a base or pasted in content you picked up from an EDU file (those free internet block library sites are full or EDU content). The stamp doesn't magically appear on it's own unfortunately.

and if you installed LT2014's latest patch it for some reason stops LT from telling you about it but everyone using lower versions still gets the prompt.

Any internet search engine will offer you fixes for the stamp in lower versions.