Do I need more RAM or a graphics card?

Long story short… I use Excel and need to copy/paste a very large data page over to new Excel file each day. The data has gotten so large that it will only let me if I reboot my computer 1st. I have an older computer with no dedicated graphics card and have upgraded to 8G RAM. Computer is Lenovo H420 IPPG620 2.6 CPU… Not really ready to upgrade to new computer yet… Thanks

Added (1). PS… It will let me copy all of the original data… It "errors" after I open a new Excel file and try to Paste the data. The data are about 200 small graphic charts. When I paste it, it is necessary to "Paste Special" as "Picture" then "Ungroup". It works fine if I reboot 1st. But if I don't it can only do about 3/4 of the data. The data size may just be overloading the max for Excel?

Explain what a junior sales engineer does?

And a junior sales manager? And a junior sales account? In easy words, possibly.
Thank you very much!

Added (1). Thank you very much Andy! Your explanation was perfect and simple to understand.

Is this a good gaming pc for the price ($750)?

I will mostly be using it for streaming purposes, but also playing some games on it.

I do not need the best settings when I play, I just want it to run smoothly and look alright.

http://www.wupti.com/produkter/computer-og-it/stationaer-computer/stationaer-pc/lenovo-h50-50-stationaer-pc

Yoga 3 Pro vs HP Spectre X360 vs Toshiba Kirabook i7?

I want to buy a nice looking and but also a little powerful notebook for general office work (mail, surf online, excel and stuff). I went to the store and they recommended these 3 products. Which one would you recommend? Price is almost the same only Kira is a little expensive compared to others.

HP Spectre 13-X360 = intel core i5-5200u, 8 GB RAM, 256 GB SSD, 13.3" 1920 x 1080 screen, intel hd graphics 5500

Lenovo Yoga 3 Pro 80HE00JRTX = Core M (1.2 ghz) , 8 GB DDR3 RAM, 256 GB SSD, 13.3" 3200 x 1080 screen, onboard graphics card

Toshiba Kira-107 = Intel Core i7 5500U, 8 GB DDR3 RAM, 256 GB SSD, 13.3" 2560 x 1440 screen, Intel HD Graphics

Why do my Video card drivers stop working when I update them to the latest version?

I just bought a refurbished Lenovo y50 in the mail with a GTx 860 2gb card.

I ran some games to test it and everything worked fine. After the test, I updated my drivers to the latest version from NVIdia's website and whenever I try to run anything with the updated drivers I get a "your display drivers are not working" and my program freezes. My drivers just stop working completely when I update them.

When I uninstall the drivers and reinstall the 2014 version, everything works fine. I can even run games on Ultra settings. But then when I try to update them again, same problem.