Thanks David.
After further research I have come to the conclusion I think that the issue is the fact that I am running my third monitor off the 2nd GFX card I have in the system which is the old ATI Radeon HD 2600 XT. It seems that Adobe does not support that card any longer.
Given the monitor was only used for text files and bins it never had to be beefy. But not its outdated and needs to be replaced. Thanks for your help.