Help: I can't save pictures

[RowanSB]

I have this problem too. I'm running GIMP 2.10.22 64 bit in Windows 10 (recently installed after reinstalling Windows). Whenever I try to save or export an image, nothing happens, and then when I click something else in the GIMP window it goes all faint, and won't do anything at all. Eventually I have to terminate it with Task Manager. Like this I can't do anything useful with GIMP at all. How do I fix this, or how do I investigate what's causing the problem? I have seen lots of other reports of similar problems, including some saying that it is fixed, but how? Is there a version that doesn't suffer from this problem that I can try installing?

Thanks - Rowan