So the problem is on my laptop, When I view videos on youtube it's fine untill i switch to fullscreen. My mouse will be unaccurate and i will have to place it to the left of the button i wish to press; there is also a line usually down the right side of the screen asif the video has been pushed to the left and my mouse doesn't know this. I tried finding solutions on the internet but couldn't find any, I found one which was to disable Hardware acceleration in flash and it fixed it, but then I downloaded a video in Itunes and bam the problem reoccured. I can't download videos drivers because i'm unsure which to download and when I went onto the AMD site i got an erorr message saying contact your dealer as it's not compatible. My graphics card is "AMD Radeon HD 6630M" This is laptop by the way. thanks.