It may be a memory issue… just a guess. However I use dual monitors when working on projects. Check to see if your system has an additional monitor outlet. Most laptops do but I am not sure about desktops. If you do have an additional monitor outlet check in to inexpensive but nice monitors at your favorite electronics vendor (like BestBuy). You don’t have get a huge 20+ incher to get visual assistance you are looking for unless you want it.
Once your plugged in and hooked up, you will likely need to adjust monitor settings. Right click on your desktop, click Screen Resolution, and select “Extend these displays” on the “Multiple displays” list. Depending upon which side your monitor is on you may need to designate which one is your main by clicking and dragging the one or two monitor to the left/right side. Once configured click ok.