I upgraded the ATI Drivers to the latest version - Catalyst 8.9
[The good news for me is that the upgrade didn't cause the
OTHER 3rd-party application to be messed up.]
Pressing F twice still causes MA3 (Beta 2) to crash. All the information that I could glean is:
"Faulting application ma3beta.scr. version 1.0.0.1. faulting module
kernel32.dll, version 5.1.2600.5512, fault address 0x0000cffd."
Well, I'll be TRIPLE dipped. [Just a note about "you never know".
Remember, upgrading the ATI driver to the latest version did NOT cause a problem with the 3rd party application, "as previous new driver versions had".
Wrong conclusion:
I was, of course, ALSO running MA3 Beta. Today's expiration caused me to go back to running MA 2.6
The problem with the 3rd party application is BACK.
So, the problem with the 3rd party application apparently REQUIRES:
1. Any recent version of ATI drivers... AND
2. MA 2.6
Combination of 3 things has the problem. [The problem symptom has always been "funny behavior of the screen UI of the 3rd party application after the screensaver exits". But since it only showed up whenever I updated the ATI drivers, and went away if I installed earlier ATI drivers, I never thought the screensaver might be contributing]
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Update: Installing Beta3 fixed the problem with the 3rd party application - and without a reboot.
However, I think I'll skip filing a bug report against MA 2.6