I was trying to use Texmaker for an ACM paper, and it was constantly giving me errors like "Font OT1/ptm/m/n/10=ptmr7t at 10.0pt not loadable: Metric (TFM) file not found."
The problem was solved by running $
sudo apt-get install texlive-fonts-recommended
"
sudo aptitude install texlive-fonts-recommended texlive-fonts-extra