Groups > Browsers > Internet Explorer 5 browser general topics > RE: PNG files suddenly display black for many users.




PNG files suddenly display black for many users.

PNG files suddenly display black for many users.
Wed, 17 Jan 2007 08:15:01 -080
I have been using Microsoft Image Composer for saving screen captures as PNG 
format since probably 1998.  I have always used Image Composer and always 
used PNG for screen shots, and never had any problems in all these years.

I haven't done a screen shot on a web page for perhaps a year so I can't say 
exactly when this started but when I added some screenshots to my website a 
couple weeks ago, and again last night, those PNG images display as just 
black rectangles in IE for some users.  For other users, they display 
properly.  

They display black for some IE7 users and display properly for some IE7 
users.  They display black for some IE6 users and display properly for some 
IE6 users.

What's changed?  What can I do to fix it?

Dale
-- 
Dale Preston
MCAD C#
Post Reply
Re: PNG files suddenly display black for many users.
Wed, 17 Jan 2007 12:00:01 -080
It sure has been doing a great job of faking it then. :)

-- 
Dale Preston
MCAD C#
MCSE, MCDBA


"Ludwig" wrote:

> IE 6.0 could never display true .png files and some could display .png only

> if they were saved in a 256 color .png format like 256 color .gif files.
> "Dale" <dale0973@nospam.nospam> wrote in message 
> news:554A979B-89C6-4214-994C-FC5CA583806A@microsoft.com...
> >I have been using Microsoft Image Composer for saving screen captures
as 
> >PNG
> > format since probably 1998.  I have always used Image Composer and
always
> > used PNG for screen shots, and never had any problems in all these
years.
> >
> > I haven't done a screen shot on a web page for perhaps a year so I
can't 
> > say
> > exactly when this started but when I added some screenshots to my
website 
> > a
> > couple weeks ago, and again last night, those PNG images display as
just
> > black rectangles in IE for some users.  For other users, they display
> > properly.
> >
> > They display black for some IE7 users and display properly for some
IE7
> > users.  They display black for some IE6 users and display properly for

> > some
> > IE6 users.
> >
> > What's changed?  What can I do to fix it?
> >
> > Dale
> > -- 
> > Dale Preston
> > MCAD C#
> > MCSE, MCDBA 
> 
> 
Post Reply
Re: PNG files suddenly display black for many users.
Wed, 17 Jan 2007 13:33:14 -060
IE 6.0 could never display true .png files and some could display .png only 
if they were saved in a 256 color .png format like 256 color .gif files.
"Dale" <dale0973@nospam.nospam> wrote in message 
news:554A979B-89C6-4214-994C-FC5CA583806A@microsoft.com...
>I have been using Microsoft Image Composer for saving screen captures as 
>PNG
> format since probably 1998.  I have always used Image Composer and always
> used PNG for screen shots, and never had any problems in all these years.
>
> I haven't done a screen shot on a web page for perhaps a year so I can't 
> say
> exactly when this started but when I added some screenshots to my website 
> a
> couple weeks ago, and again last night, those PNG images display as just
> black rectangles in IE for some users.  For other users, they display
> properly.
>
> They display black for some IE7 users and display properly for some IE7
> users.  They display black for some IE6 users and display properly for 
> some
> IE6 users.
>
> What's changed?  What can I do to fix it?
>
> Dale
> -- 
> Dale Preston
> MCAD C#
> MCSE, MCDBA 

Post Reply
Re: PNG files suddenly display black for many users.
Wed, 17 Jan 2007 17:52:14 -060
http://www.libpng.org/pub/png/pngstatus.html#browsers
Some browsers have changed
"Dale" <dale0973@nospam.nospam> wrote in message 
news:7E1C7FAE-DAF6-4B4A-A43C-BFFD26F8FFB3@microsoft.com...
> It sure has been doing a great job of faking it then. :)
>
> -- 
> Dale Preston
> MCAD C#
> MCSE, MCDBA
>
>
> "Ludwig" wrote:
>
>> IE 6.0 could never display true .png files and some could display .png

>> only
>> if they were saved in a 256 color .png format like 256 color .gif
files.
>> "Dale" <dale0973@nospam.nospam> wrote in message
>> news:554A979B-89C6-4214-994C-FC5CA583806A@microsoft.com...
>> >I have been using Microsoft Image Composer for saving screen
captures as
>> >PNG
>> > format since probably 1998.  I have always used Image Composer and

>> > always
>> > used PNG for screen shots, and never had any problems in all these

>> > years.
>> >
>> > I haven't done a screen shot on a web page for perhaps a year so I

>> > can't
>> > say
>> > exactly when this started but when I added some screenshots to my

>> > website
>> > a
>> > couple weeks ago, and again last night, those PNG images display
as 
>> > just
>> > black rectangles in IE for some users.  For other users, they
display
>> > properly.
>> >
>> > They display black for some IE7 users and display properly for
some IE7
>> > users.  They display black for some IE6 users and display properly
for
>> > some
>> > IE6 users.
>> >
>> > What's changed?  What can I do to fix it?
>> >
>> > Dale
>> > -- 
>> > Dale Preston
>> > MCAD C#
>> > MCSE, MCDBA
>>
>>
>> 

Post Reply
RE: PNG files suddenly display black for many users.
Thu, 18 Jan 2007 09:15:29 GMT
Hi Dale,

Is it possible for sending me those PNG files so that I can test it on my 
side and verify the behavior? Thanks.

Regards,
Walter Wang (wawang@online.microsoft.com, remove 'online.')
Microsoft Online Community Support

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