My trustyTR5MP is getting some slack on opening and closing. Someone mentioned replacing hinges in another post - any ideas where I could get these from and how much they cost.

Also, my motion eye shows a white screen(no black noise) and any ideas here would also be appreciated.

No need to replace (imho). Just remove the keyboard and white cover and you can tighten the screws. I believe that will help.

In case you need to buy new ones you can get them on ebay (used) or nexttronics.com (new).