This article applies to:
E-Prime 3.0
Symptoms
Experiments run on Windows 11 24H2 cause E-Prime to either freeze or report the "Display is too busy" runtime error (Error 11102).
Detail
What is Windows 11 24H2?
Windows 11 24H2 is the first major update to Windows 11 released in 2024.
What is the impact on E-Prime?
One of E-Prime’s most important features is its ability to achieve and maintain millisecond accuracy. E-Prime takes numerous precautions to both ensure that your experiment’s timing is accurate and to monitor and flag when timing inaccuracies may be present.
With each Windows release, Psychology Software Tools performs a large battery of tests across a variety of configurations to confirm E-Prime's timing integrity. Users experiencing this runtime error or freezing should implement the workaround below.
NOTE: The "Display is too busy" error message can occur for other reasons, primarily when other external programs attempt to update the display during an experiment. The "Display is too busy" error is therefore not specific to the Windows 11 24H2 issue.
Workaround
The following workarounds are possible:
Workaround 1:
NOTE: This workaround is applied by default if using E-Prime 3.0.3.219.
Disable the Fullscreen Optimizations setting for E-Prime. This setting needs to be edited per user account.
Follow these steps to disable this setting:
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Navigate to C:\Program Files (x86)\PST\E-Prime 3.0\Program.
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Find the E-Studio application.
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Right-click on the E-Studio application and select Properties.
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Navigate to the Compatibility tab in the E-Studio Properties.
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Check "Disable full screen optimizations."
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Click OK to confirm the changes.
NOTE: Perform steps 2-6 for the E-Run application if using E-Run instead of E-Studio to launch the experiment.
NOTE: While PST's in-house testing confirmed accurate timing, researchers should verify their own timing using external hardware to ensure millisecond accuracy. For example, users can verify timing by using Chronos and a photosensor to ensure that Stimulus onset and monitor refresh rates are accurate.
Workaround 2:
Do not upgrade your machine to Windows 11 24H2. Currently, this issue has not been reported on previous versions of Windows 11 (e.g., Windows 11 23H2).
See Also:
RELEASE INFO: Known Issues in E-Prime 3.0 [27789]
RELEASE INFO: Operating system (Windows 11, 10, 8.1, 8, 7, Vista, and XP) support in E-Prime [18652]
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