This from a recent answer of mine to a similar question. First off, this is to clarify that I have not come across any guides for adjustments on the loading mechanism. There is a [http://www.youtube.com/watch?v=6rxZAr1TfqE|decent video] on Youtube.com that shows how to replace the laser. It might show you more of the optical drive. Now, if you check [http://www.youtube.com/watch?v=eJpPbno0T-I|this video,] it appears that there is a possibility that this error is caused by a misaligned laser and spindle motor. If it does not pull the disk in, then there is a problem with the loading mechanism. If it does not read the disk, it is most likely an error with the laser assembly. Whatever the case may be, you will have to either disassemble your optical drive and further investigate, or replace the drive. Hope this helps, good luck.