Problem with auto-pst-pdf (dvips-related: couldn't find header file)

Dear MikTeX users,

I'm using MikTeX 2.9 on Windows XP. When I compile on the pdfTeX engine a document containing PSTricks code by using the auto-pst-pdf package my system replies with the following message:

dvips: ! Couldn't find header file: <jobname>-autopp.out.ps

Everything else seems to be working fine, and this message started to show after my computer froze while compiling a document. It may so happen that my dvips-related files are corrupted for that reason, but I'm not sure as to what's going on here. 

I could uninstall and re-install my MikTeX system, but it's a fairly full installation that I have and before taking such a radical approach I'd like to ask if somebody could provide any hints on an alternative -- such as what files I should replace and where to locate them (if they're available at some repository).

Thanks so much in advance,

Marcos     


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