Pro Tools help (non synth)

[DX]

Hi.
Sorry if this is not the right place. I placed it on "offtopic" too but it is possible people don't look there (because Offtopic is not showed on web index). I think this is related to a help needed. If mods have to move it because a non synth topic, , go on.

Misteriously, grid has dissapeared on Edit window. I don't remember I have touched any button.
All the sessions have the grid missing.

I work with PT for two years, never happened this. Sure it is or a silly fault from myself, or maybe the program neeeds to reinstall.

Any suggestions?. I have the 6.9 version (official but it have a bug with the help menus, I can't reach manual to check if there is any way to disable/enable the grid).

Note that I have GRID selected, above at the left.

Thanks.

[DX]

Fixed.
Once reinstalled, and checking problem was still there, I checked every setting on Setups menu. There was a box unchecked. I still can't figure how It was disable.