some objects on my screen are tinted red : \

yeah, a few days ago, when i logged in, (during when SL was going haywire with errors last week) there is this weird thing going on when i logged in, and its still happening.
some objects, buildings, and other things have a Red tint on them, and i cant get rid of the red tint. i tried control-alt-T, but that didnt work nor was the cause. this must be a error i am guessing, how could this be fixed, or resolved, its starting to bug me : \

Try with:

Ctrl + N (or Command if mac)
Ctrl + Alt + T (or Command + something if mac)

Yes indeed, Highlight Transparant.
If those shortkeys don't work out, go to "view" and then "highlight transparant"