Image Mask Transition.... Premiere Elements 10... Someone please help!!!!!

Question

I have followed the instructions to the letter on p136 of the "premiereelements_10_help.pdf" and somehow the image mask transition just does not seem to work.
With a Black & White one colour should be transparent to one clip and the colour to the other clip, but instead I just get the Black & White image thrown on the screen.
Just like a pasted inage into the joined clips.
Please can someone help as I'm sure there must be a step missing.
Using WIndows 7 x64 with the 64 bit version of Premiere Elements 10.
Thanks.

Answer 1

No worries. Thank you so much for your reply. I thought I was going MAD!!! ( I slowly was!!! )
Will Contact Adobe about this tomorrow.
In the meantime if you're reading this and also are using Windows 7 x64 with the 64-bit version of Adobe Premiere Elements 10,
please try using the "Image Mask" transition using the following steps (as per page 136 of the Premiere Elements 10 manual)
<------------------------------ From Adobe Premiere Elements 10 PDF Manual - Follow these steps to the letter. Play your clip back... watch it fail on Win 7 x64 ---------------------------------------->
Create special transitions
Create an Image Mask transition
You can use a black-and-white bitmap image as a transition mask.
The first clip replaces the black area in the image, and the second clip replaces the white areas in the image.
If you use a grayscale image for the mask, pixels containing 50% or more gray convert to black, and pixels containing less than 50% gray convert to white.
Apply an Image Mask transition
In the Tasks panel, click Edit, and then click Transitions .
From the menus in the Transition view, select Video Transitions from the first menu, select Special Effects from the second menu, and locate the Image Mask transition.
Drag the Image Mask transition to a cut between clips in the Timeline.
In the Image Mask Settings dialog box, click Select Image.
Locate and select the image file you want to use as a transition mask, and click Open. The image appears in the Image Mask Settings dialog box.
Click OK.
Cheers.