Disable resize on title bar?

[lewers]

I have created pop-up windows with scripted user abort off/hide status area/pause. This works fine. Users cannot do anything until they click one of the buttons on the pop-up. The close box is not active. However, the resize box is active, so the user can monkey with the size of the window. Is there some way I can disable this? Also, I've had a user request to "dim" or gray-out the close box since it isn't useable. Is there anyway to customize title bars?

Thanks for any advise!