FVWM: Any special requirement on png format for TiledPixmap?

I use gimp (v2.6.1) open a png file, a button icon and save as an another filename. but I found it seems TiledPixmap can not open the file. The button is blank. Any idea?

Re: FVWM: how to make button unpressed while moving off cursor from it

On Fri, Oct 31, 2008 at 9:58 PM, Thomas Adam <[EMAIL PROTECTED]> wrote: > 2008/10/31 for.register for.register <[EMAIL PROTECTED]>: >> Hi, >> >> In fact, I dont know how to say in in English, Let me try: >> >> For example , I want to close a window, I press and hold the left mouse >> key on the "