Windows 7: Windows 7 Ultimate IE 8 and Compatible Adobe Reader Versions?

We have a few users that experience blank pages or a pop-up with no text and only an OK button when trying to open an Adobe (web) Form with Adobe Reader 9.0 or 9.4.2 or 9.4.0 on Window 7 and I.E. 8. Adobe Reader X is not an option since it is not supported within our firm. Does anyone have a list of the compatible Adobe Reader Versions for Windows 7 and I.E. 8. I'm sure this is highly unlikely, but does Adobe have a matrix that indicates the compatible version according to O.S. and Browser?

I have no issues with any of those Adobe versions, even going back to 8. I also have no issues running Adobe Reader X. I would try uninstalling and then reinstalling Adobe, and then making sure the plug-in is enabled in IE8. You can also ask the support department to test X and make it a supported app.