Searched the archives but didn't see this question asked or a similar instance when searching on Google and looking at Google images. I have a mid-2011 iMac with stock internals and a AMD Radeon HD 6770M 512 MB graphics card. Only on boot and after logging in on the right side of the monitor it has a white gradient glow going up the right side.
It's very noticeable on boot but after the monitor warms up (I'd assume) it fades away. I'll try to edit with a pic later this afternoon but I was curious to know what internal part would cause this issue and a solution?
I haven't moved the iMac in a long time and don't recall it doing it when it was moved but I only boot this about once a week. I do have an SSD to swap out the stock hard drive this week but if I need a new part for the monitor if this isn't normal I'd like to know.