Flash showing as white screen

I has a similar issue and was able to solve it.  It appears to be a problem with co-existance of certain adobe software products (so much for regression testing boys).

windows 7 workstation with

Adobe reader 9.x (didn't take note of the exact version).

Adobe flash 11 (latest at time of post)

Adobe shockwave (latest at time of post)

Adobe Air (didn't take note of version).

other software (not important)...

I tried the hardware acceleration non-sense.  Worthless advice as it didn't work for me.

Solution:

Uninstalled all adobe software (all 4 that I had installed). 

Observed that now youtube showed that I didn't have flash installed.  That was a good sign to me.

Installed latest Adobe reader, adobe flash, and adobe shockwave.  Didn't bother to install Adobe air. 

Everything works fine now.

Because I felt like and and appearantly no one could answer so...  mind ya biz dude!

Try going to Publish Settings in File menu.  Click on wrench next to action script 3.0 (Settings)  Towards the bottom under library settings change from current setting to embed in code setting...  ;-)

I had the same problem until recently, and now have my Flash working well.

Try this:

Go to http://kb2.adobe.com/cps/155/tn_15507.html and check to see if the version test reports your flash to be correctly detected.

If so, let's assume Flash has been installed, and your particular settings are preventing it from playing correctly.

Now go to the global settings manager here:  http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager05.html

and check the second tab, the Global Storage Settings.  Make sure you check 'Allow third party Flash content to store data on your computer', and move the slider over to 10KB.  (I also have the store common flash components to reduce download times checked on, but I'm not sure this is necessary.)

Change to another settings tab to save the settings!!, and then navigate to the website you're getting a white screen on.  Make sure you give the page time to load, and see if the flash won't play now.

My experience is that when I uncheck the 3rd party content storage, I get a white screen, and when I check it to allow storage, the video plays flawlessly.

That's with an xp sp3 system, running IE8, but I seem to recall the same behavior with Firefox.