This is not a problem with IrfanView, but it is involved with it.
Something strange happened while I was browsing a folder of old images with some new work being added. There is one TGA file among the JPGs, PNGs, and BMPs. I noticed the image in the thumb viewer and made a mental note to go back to it. When I looked for it again, it didn’t seem to be there. Then I saw that its thumbspace was blank.
In a file manager window it showed the wrong icon, and when opened in IrfanView it was blank. It had been normal only minutes before.
A little investigation showed that the file type designation in the Windows Registry had switched from “IrfanView TGA” to “IrfanView SGI”. (I don’t even have SGI files associated with IV; I don’t have any.)
This must have happened while I was fooling around with the other files, because IrfanView was not blind to the file when I started.
The other odd thing is that after I fixed a few things in the Registry, IV sill did not display the file.
I rebooted to make sure the registry changes would be effective, and something else went weird. The window of a program that runs at startup was not showing. It had to be brought back on screen with a window hacking proggie.
I suspect Windwoes is having me on a bit. That is not a good sign. Is SilentBob getting delusional? Am I going to have to *gasp* kick some file and drive ass? Lordy, I’ve got a lot of gigabytes invested in this Vista monster. 🙁
11-05-21 update — still farked.