Help! Severe problem saving with an action

Question

I loaded an action I created in CS3 into CS5 to save a photo in 4 different locations at different sizes. I am using a Mac with OS X 10.5. The action works perfectly in CS3 (it didn't get corrupted), however when I use it in CS5, it doesn't ask if I want to replace an older file with the same name. Instead it writes the file with the same name plus a space, and the word "copy".
This will not work since these photos are used by other programs to automatically appear on my web pages.
I tried to fix the problem by creating a new action in CS5, and when I created the action, I made sure that the file name was already in the 4 locations, so that a dialog box would come up, asking whether or not I wanted to replace the older file. Then I ran the new action, and it worked fine, except it didn't ask whether or not I wanted to replace the older file with the same name.
The dialog box comes up in CS3 when I apply the action there, but not in CS5.
So neither the old action, nor the new action will ask me if I want to replace the older file when I am in CS5.

Answer 1

Yes this is probably yet another symptom of - the fact that they seem to have messed with a lot of what I am, in my uneducated way, calling the "Saving and Opening interface" between OSX and Photoshop CS5. The interaction between Photoshop and the Operating System in respect of saving files to disk, clearly just hasn't been set up properly. There are delays and all kind of weirdness going on - making work slower than equivalent tasks in CS4.
These kind of mistakes should certainly be corrected with updates.