My PC is an HP e9150t quad core machine using an Intel i7 CPU (firstname.lastname@example.org GHz). I have 8 GB of RAM and am running Windows 7 Home Premium-64-Bit. I have been using a software program called Fences (Stardock Fences version 1.0 0.2787) which is a very effective way of grouping desktop icons.
I began using the software approximately 2 months ago and it has worked flawlessly. I don't know if it is related, but approximately 3 weeks ago I have had some weird behavior with some of my desktop icons. I have two monitors and just lately I find that certain desktop icons cannot be moved. These icons are not in a fence.
Other weird experiences have been that sometimes as I am repositioning windows or cutting and pasting documents, certain icons seem to move back and fourth rapidly within a 1 inch space (no, I have not been drinking or taking recreational drugs).
Do you have any idea what might be causing this weird behavior? Thank you for your help area.