When I installed the demo version, I can associate FITS files to AA5 under Win7 64-bits with my two machine. So I can double click on *.fts or *.fit files to open them up in AA5. However, after purchased the full version and re-install it, now on both my machine I cannot associate FIT files to AA% anymore. If I right click on those files and try to use "Open With" to set the default program, AA5 was not in the list. And then I tried to use "Browse" to find AA5 manually, after selecting the executable of AA5, still it will not be shown in the Windows' menu to be used as default program.
It just like Win7 did not know the existence of AA5. On my both machine they were working fine in demo version but failed in full version, Why?
