Inventor global axis is rotated, how to solve it?

Dear all,

I have problem with the global axis. I thought they were fixed, but it may not. Somehow I rotated the global axis NOT the model. I am not able to change it back. In other words, if I use the "rotate" function and try to see the front view of my model, it is not really the front view because of the global axis are rotated. May I know how to solve it. Thanks

I don't know what this means (actually I think I do, but just to be sure) can you attach screen shot here.

You have not indicated whether this is in the part environment or the assembly environment.

More information is needed.

It is the assembly environment. Thanks

You still didn't post a screen shot as requested - so I'll take a wild guess.

At some point you ungrounded the first part.

If any parts are now grounded - unground them.

Expand the assembly Origin Folder.

Add Mate-Flush constraints between the XY-XY, YZ-YZ, XZ-XZ of the logical base part and the assembly planes (or whatever planes will give you the desired orientation).

Then reground the logical base of the assembly.

Thanks. You solve my problem