"Some Postscript specials could not be rendered" error

This is a problem encountered while practicing with MikTex and WinEdt in the windows environment. Solution is simple: Select dvips option from the Render Menu. This should solve the problem.

Metric (TFM) file not found error

While using pifont package and ding expression, I had the following error with the Latex:

! Font U/psy/m/n/12=psyr at 12.0pt not loadable: Metric (TFM) file not found.

<to be read again>

relax

l.64 {\Pifont{psy}

}

?

This is partially solved by dowloading the "symbol" package from the Package manager of the MiKTex