Cell selection sticking

[Guest]

Every time I select a cell, the selection sticks causing the selected cell to
drag continuously. I cannot click off of it, or select anything. To get it to
stop I have to ctrl-alt-del. A previous post had the same issue back in
January. One reply of hitting F8 was posted. This does not help. Are there
any other suggestions?
Thank you.

 

[Max]

Just hazarding a guess here ..
could it be a worn-out mouse / keyboard problem ??