Overwite not promting

[Antagony]

There are a couple of files in my 'External' list which, if they already exist, I want to ask the user whether to overwrite. I've set the 'Overwrite' option (on the Properties --> Advanced tab) to 'Ask the user' but it doesn't work!

It's probably something I'm doing wrong, but I can't fathom what that is... any ideas... please?

[pww]

are files in installer newer than files existing on disk?
Maybe if installer detects that the file has the same timestamp & size it automatically skips it, test with files that are older/newer/different in size

[Antagony]

I've worked it out - or at least I think I have - there were some other files in the same folder, so I set their 'Install Order' to a higher priority and now it prompts to overwrite.

I guess the overwrite property on the other files was causing the entire folder to be overwritten first; hence the files I wanted to prompt for no longer existed. It seems a bit of a naff way of doing things.