[texworks] Texworks quit working (on windows)

[K. Frank]

Hello List!

I had been successfully running texworks on windows, but then it
stopped working.  When I attempt to launch texworks, the texworks.exe
process appears to run briefly (it shows up for one refresh cycle in the
windows task manager), but exits, essentially immediately.

Does anyone know how I might fix this?

As I recall, I downloaded and installed texworks in July, and then
subsequently downloaded and installed tex live.  I believe that
when I was running texworks, it was the version I had installed
first, and not the tex live version.

After not using texworks for a while I tried to run it, and it wouldn't
start, as described above.  It's possible that an instance of texworks
was open when the computer experienced a hard crash.

After trying a few random things, I uninstalled texworks and tex live.
I then downloaded a new copy of the tex live installation package.
(install-tl.zip that unzips into install-tl-20110921.)  When I tried to
run install-tl.bat, perl.exe crashed with an access violation.

I then used the previous version of the tex live installation package.
(install-tl.zip, downloaded on 7/31/11, that unzips into install-tl.)
I ran that version of install-tl.bat to reinstall tex live.  The installation
process seems to have run correctly (with a few warnings about
wget retries).

I now try to run the texworks application that came with tex live, and
I get the same result: the application runs briefly (according to task
manager), but exits immediately without doing anything or displaying
anything on the screen.

I didn't make any noteworthy system modifications between when
texworks was running and when it quit,  I did install a java development
kit and ant to support another application, and firefox may have updated
itself in the meantime, but nothing dramatic.

I am running on 64-bit windows 7.

Any explanations or advice would be most welcome.

Thanks.


K. Frank