for some reason i am getting a yellowish color at the bottom of my projection... I figured out its not the screen, because when i take the screen out i get the same thing, i think maybe its one of the fresel lenses but when i pull them out i don't really see any yellow color on them. Its barely noticeable but i'm looking for the best picture possible... Does anyone have any suggestions?

This is likely the effect of excessive heat on the fresnels. Remember that the bottom of the projection is the top of the fresnels, where heat will be greatest. The fresnels are acryllic, so they are prone to heat degradation.

Your cooling system is inadequate...

It could also be because the parts are not aligned well - I'm just guessing, but I know I got yellowish discoloration when the bulb was too far (or close, can't remember which) to the rear fresnel, and blue discoloration the other way. If the fresnel doesn't show discoloring itself, it would be a misalignment issue I think.

Would this happen even if i have tempered glass between the lamp and the rear fresnel?

Can it be possible that my tempered glass is to close to my rear fresnel, because they are basically touching each other.

Actually i think i might have found the problem, i turned my pj on and left it with a white screen, now i touched the fresnel closest to the lamp and wiggled it back and forth, as i did that i noticed when i pushed it back the yellowish part started turning white...

i see that my fresnel has a slight curve bending forward, when i push against the curve it begin to get white in the picture where it was yellow..

do you recommend that i take this fresnel out and keep bending it until i can get it as straight as possible, or is there a better idea?

Well does anyone know if it would be ok for me to bend the fresnel back into place so that it can be straight

Maybe "clamp" it down to the glass if you can?

You should be able to. Actually, while a dangerous method (UV, whatev.), I held the fresnel over my 'lightbox', and that made it bend some. I think from the heating.

Try that way if you want, you may also be able to just bend it but that might make cracks.

If you do hold it above the lamp, dont hold too close, I did about 10" away.

Well, it is true that there will be some chromatic distortion if the fresnel isn't square and flat. This can also cause problems.

Being that I'm somewhat paranoid about UV, my light box doesn't let out any light that is not filtered through the Lexan XL10, so for me to adjust things inside the box while the lamp is on isn't going to give me a sunburn. (Actually, direct exposure to high UV will do much worse than give you a sunburn, it can do very nasty things to you, so give it the respect that it deserves!)

Supraguy= I really appreciate your concern regarding UV.I have gone through the entire GE PLASTICS site and observed that not all lexan sheets has UV coating but only a few.The ones i noted are :
Lexan EXELL D sheet
Lexan XL102UV
Lexan XL10 but the last one is only singly UV coated.Actually i am finding it difficult to get it in INDIA.So could you suggest to me anything else than can be so used?
Does your bulb have UV FILTER written on the carton?