Thank you. I have never been on a Forum before so I apologize for not knowing about the process or the MacPro forum which I will now look up. Those who jumped me simply did their deed for reasons better known to themselves but maybe now they will listen to the details of my problem which the more patient and intelligent members requested of me.
DETAILS; I have a MacPro, System 10.10.4. I mostly use Safari, Pages and iMovie (all Apple programs). The scrolling has a mind of it's own and goes out of control to such a degree that sometimes on FaceBook I have difficulty getting back to finishing my post and often have to move on and start all over. When I am on Pages, especially if it is more then one page the scrolling just takes off on it own irradical course up [and down the page and is so uncontrollable that I can not stop it sometimes so I simply shut down and try again hours later. I have changed the key board twice (wireless and hard wired0, i have changed the mouse several times (wireless magic mouse and hard wired. Dozens of tech support people have spent hundreds of hour with me during the past year while it was still part of the warranty. On instructions I have taken the device to the Apple Store only to find out that each time all they did was use their 'TESTING' equipment which does nothing to solve the problem.
Using my MacPro became so frustrating and useless (I do a lot of writing) that I was forced to stop using it and buy another MacPro laptop. I am a licensed Amateur Radio Operator and I have built receivers and transmitters and at age 21 I built a television set. Having seen also many hairline cracks in solder on boards I feel there is a crack in one of the logic boards which causes interment meal functioning. I asked the Apple Techs to try exchanging logic boards (even used boards) until the issue stops but they can not do that they said unless their test equipment shows a failure. I understand their process system but nonetheless I am left with an unusable computer.
Since starting this short response the erratic scrolling took over from me as much as a dozen times. Imagine writing a technical lengthy report under thee conditions. I have talked to several ladies and a tech support man at Apple but to no avail. The last lady who admitted knowing nothing about the 'TECHNICAL STUFF' told me that Apple would not repair, replace or continue giving me support. The Tech man says he wants a movie of the problem happening but did not show me how to do that. I have since figured it out AFTER they shut the door. My posting was for no other reason but to warn others or the facts of my unfortunate experience with dealing with this issue and the shotty treatment of a faithful customer who have converted MANY of PC users to become Mac users. If anyone can help me solve the problem I would feel indebted. I have given very useful tips to many tech people at Apple when learning but now I am the one in need.
Thanks to the courteous persons who responded to my plea for help
Now Apple is refusing to provide tech support, refusing to repair ny MacPro and refusing to replace it.
Those who tried to make me look like an idiot are just worshiper of Apple as if they don' make mistakes. Thank you to the others who have tried to understand me. I am 81 years old and I feel cheated by Apple so yes I will take it to court and I will be glad to report back the results of my effort as only a very biased Judge would not rule in my favour.