Add a troubleshooting tip about the Windows registry.  This is basically the same text I added to the PyFITS FAQ but s/PyFITS/Astropy
Add a troubleshooting tip about the Windows registry.  This is basically the same text I added to the PyFITS FAQ but s/PyFITS/Astropy

DougBurke/astropy,lpsinger/astropy,tbabej/astropy,larrybradley/astropy,saimn/astropy,lpsinger/astropy,saimn/astropy,pllim/astropy,stargaser/astropy,stargaser/astropy,mhvk/astropy,saimn/astropy,MSeifert04/astropy,aleksandr-bakanov/astropy,larrybradley/astropy,lpsinger/astropy,mhvk/astropy,astropy/astropy,DougBurke/astropy,StuartLittlefair/astropy,pllim/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,joergdietrich/astropy,AustereCuriosity/astropy,dhomeier/astropy,joergdietrich/astropy,aleksandr-bakanov/astropy,stargaser/astropy,StuartLittlefair/astropy,MSeifert04/astropy,funbaker/astropy,bsipocz/astropy,StuartLittlefair/astropy,dhomeier/astropy,kelle/astropy,AustereCuriosity/astropy,astropy/astropy,astropy/astropy,kelle/astropy,kelle/astropy,saimn/astropy,saimn/astropy,funbaker/astropy,MSeifert04/astropy,dhomeier/astropy,tbabej/astropy,bsipocz/astropy,stargaser/astropy,dhomeier/astropy,funbaker/astropy,bsipocz/astropy,mhvk/astropy,pllim/astropy,mhvk/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,kelle/astropy,joergdietrich/astropy,lpsinger/astropy,DougBurke/astropy,tbabej/astropy,tbabej/astropy,AustereCuriosity/astropy,pllim/astropy,lpsinger/astropy,dhomeier/astropy,astropy/astropy,DougBurke/astropy,joergdietrich/astropy,larrybradley/astropy,kelle/astropy,tbabej/astropy,astropy/astropy,pllim/astropy,AustereCuriosity/astropy,AustereCuriosity/astropy,StuartLittlefair/astropy,mhvk/astropy,larrybradley/astropy,bsipocz/astropy,joergdietrich/astropy,StuartLittlefair/astropy,funbaker/astropy