Today, when I told Jon what was happening, he suggested that it was a virus and to have Eli, our tech guy, work on it.
Sure enough, Eli found a virus AND it was on my flash drives as well! He cleaned it off and was working on getting fixed when I left work.
Flash back a few months ago.
I came into my office one Monday and found the computer turned on. It was on a porn site. It turns out that the cleaning crew that comes in on the weekends was using my computer for "recreational" purposes....
This is how we think the virus was transmitted.
Now, I plan on locking my office. I will vacuum it when needed.