I can't add UV at modeling.

[mintchocosuuki]

The modeling file was first at home.

Then I bring the file at work and brought at home again.

 The UV was fine at work, but after I brought at home again, I couldn't see the UVs.

I thought it is because of the UV's saved place was different, so I checked and linked, but It dosen't show. 

I also checked the show at viewport icon.

The main problem is the drag and drop UV function were not available.

I even erased the UV and added again, but the UV only shows the 'object color' colors.

Is there anyway to solve this problem?

[RobH2]

Are the Max versions the exact same with the same updates?

[jibijib]

Check you don't have the object in 'sub-object' mode with nothing selected inside.