I've done that. Transcription and data entry have got to be some of the most boring jobs I've done. Not to mention, like you said, you're stuck at the desk, and it just progresses your carpal tunnel syndrome.
It's even worse when you don't have any sunlight. (This seems to be my perpetual problem with working - I never get to see the light of day!)
Back when I was on Zoloft for about a year, I don't think I ever did get the dosage right... I stopped feeling depressed, but I stopped... feeling. I just didn't care, and like you said, everything seemed kinda grey-scale and boring. I think it helped me realize what's worth getting upset over, and what's not, though. So, while I haven't been on Zoloft for probably 8 or 9 years now, I think I have a better handle on life in general, and realize that "Yeah, this is boring, but it's not worth getting upset over." Or "Yeah, this job is boring, but it's better than being unemployed."
I find myself doing a lot of, "this too shall pass..." and deep breathing exercises...
--Janis