Retopo issue

[M_i_c_h_e_l]

I’m totally lost !
I’m retopologizing a character. Not very complicated, not a lot of polygons.
But as soon as I finish, say 10 or 15 vertices, I can’t move anymore the old ones.
I made for now 500 polygons in my model and now I can only move the 15 last vertices and no more the 485 first.
Did I hit a magic key to lock them or is it a bug ?
I’m using ZBrush 3.2 on MacPro with 8 Go memory under OsX 10.6.2

I relaunch several time ZBrush and the model but nothing changes.

I’d greatly appreciate every help from the gurus here.

Michel

[spaceboy412]

its possible they are masked, try hitting the clear mask button. 500 verts should not be a issue.

[M_i_c_h_e_l]

Ouch ! Apparently that was the issue !
Thanks !
These two key (ctrl and alt) are so close that in fact we use often one instead of the other. At least this is what I guess.
Isn’t ?
Cheers again Spaceboy.