hi!!!
well i decided to take a look and see if i could fathom it out,
i couldnt see anything wrong with the polarisers, so i decided to look a bit further i have no idea what the names are of some the items i took out i think some may have been filters looked a different colour to the polarisers, then there were these thick peices of round glass concave i had them out to, the bottom line i couldnt actually see anything wrong.
maybe the damage on the blue polariser wasnt visible to the eye? although i think it must be the polariser from what ive read the blue tinge can get worse with more heat and the longer the pj is on the more noticable it is.
or maybe its a problem with the blue panel?
although i didnt resolve the issue it was great fun having a look it was around 3 hours start to finish.

amazingly i had no parts or screws left over i was well chuffed.
and the projector still works

cant get the pics to upload ill have another go tomorrow (its because the jpg files are to big the smallest is 252.0 kb) o well.....
best regards
nick.