Computors are confusing and SPECIAL ,I was having display issues displays and icons seemed to have a mind of their own ,I went to ( ) large big box office supply store with tech.dept .and inquired .no sweat bring it in should be cheap fix .RIGHT ,took it in ,they couldn't fix .Did a automatic free scan and came up with 4300 issues ,I watched the scan ,for $149.00 they could eliminate the 4300 issues but no guarantee of fixing the problem.would take 6 hrs to do the auto prog.issue fix then they would call with next step if needed ,their best guess was another $275.00 .Me. What about another computor ,being this was not a preemo unit Just a middle of the road 2-yr old Dell ,$650.00 upon further questioning turns out there is middle of the road ,but new ! I said Thanks but no thanks ,how much do I owe You so far ! nothing he said .Fine I said brought it home sicked Norton on it ,complete check out ! upon completion I played with it .not sure what I did but works fine and been using for 6 mos. since . So evidently it was the nut behind the wheel .So my long winded point is you have to ask a lot of questions and the important ones three times in slightly different ways to get to the facts ,compatability is a major issue on older programs and newer one s too! btw Norton did not find any where 4300 issues and it corrected them all ! You have to ask and ask or you will own something ( oh ! Gee ! thats not compatable ,but I can't take it back it's been opened !!