@ gster123, As soon as we suspected it might be a graphics card issue, I sent him to autodesks site to check his card and mac os version for use with Maya 2009 but we didn't think about asking on forums with his version card so we'll try that if nothing turns up.

@halfloaf, I'll find out. If so, we'll search to see if there is any resolution for the problem on autodesks disscussion forum.

Thx to both of you