Just recently, many of the vids on FB just show a white space where the vid should be, if I mouse over the space, the (play) arrow will appear, if I click on that then the video plays but I still cant see it but I can hear it. Any ideas how to resolve this issue?
Hiya
I suggest you try ComboFix. It's only small program but it's a heavyweight. Try and disable your antivirus program till it finishes though and having started don't touch the k/b or mouse.
http://combofix.download-pc-software.com/
If it doesn't work at least it won't do any harm and it may clear problems you didn't know you had.