png problem

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Mark - 17 May 2006 19:22 GMT

I have a presentation that uses png files with transparent backgrounds.
On some versions of PPT for Windows all is as expected. Other versions
give black boxes, obliterating the lower layers, instead of
transparency. It doesn't seem to be old versions of ppt... almost a
random occurence!

Any ideas?
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Mark

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TAJ Simmons - 21 May 2006 20:41 GMT

Mark,

>Other versions give black boxes,

I'd suggest to the other users to try updating their 'graphics card drivers'
from the relevant website ...

www.ati.com www.nvidia.com etc

also this...
How to set graphics hardware acceleration back
http://www.pptfaq.com/FAQ00129.htm

Cheers
TAJ Simmons
microsoft powerpoint mvp

awesome - powerpoint backgrounds,
http://www.awesomebackgrounds.com
free powerpoint templates, tutorials, hints, tips and more...

>I have a presentation that uses png files with transparent backgrounds. On
>some versions of PPT for Windows all is as expected. Other versions give
[quoted text clipped - 4 lines]
> --
> Be Seeing You

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Andrew Chiang [MSFT] - 23 May 2006 01:51 GMT

Hello Mark,

Can you be a little more specific as to where you are and aren't seeing the
problems and the versions involved? For example:
1. Create presentation foo on Mac PowerPoint version 11.2.3
2. Insert bar.png and use foobar transparent background [make it
"transparent" via ?]
3. Open file created in step 1 using Windows PowerPoint version
xx.xxxx.xxxx

Result:
Black boxes instead of ?.

Expected:
?

If the issue is on Windows PowerPoint and it seems to be video card/driver
specific, please indicate the chipset and driver version. Also, does the
same problem happen in Word or Excel?

Thanks,
Andrew

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Mac Forum / Applications / PowerPoint / May 2006

png problem