ok i just got this drive. it is the 1633s. it reads dvds and plays them fine...it will even read cd's. i put one in and it shows up in "my computer" and i can explore the disc and run stuff. so heres the problem. when i try to install or copy something from the drive, it goes for a second and then quits like it is locked up.(progress bar stops not the entire comp). if i try the same thing in my plain old 52x cdrom it works pefect. whats the problem??