HELP! New Sony DRU-840A

I bought a sony DRU-840A DVD/CD burner to replace my ailing Pioneer that only worked 1/2 the time. I installed and the drawer will not stay closed. I close it with the software disk and it keeps popping back open. Computer has polenty of memory, disk space and Pentium 4. Help!!

Cable hooked up correctly? Jumpers correct in the back of the drive?

Yes, plugged cables from old burner directly into new one. Slid out old, slid in new and plugged in.

the reason it wont stay closed is because the faceplate isnt all the way on.the tray isnt closing all the way. i had the same problem but its fixed now!:iagree: