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What to Do If Minecraft Crashes as Soon as You Start Recording with oCam (NVIDIA Graphics Card)
Using oCam at work or school? A license is required, and it removes all ads, including this window. See the paid version →
In Java-based applications that use CUDA, including oCam, problems may occur when certain NVIDIA drivers are installed. In particular, if NVIDIA driver version 378.49 (or some other versions) is installed, a bug may occur where the app crashes with the error "Stack cookie instrumentation code detected a stack-based buffer overrun" when calling the CUDA initialization function `cuInit`.
This issue is not a bug in oCam itself, but a problem with the NVIDIA driver that affects all applications that use CUDA. Therefore, the same error may occur not only in oCam but also in other CUDA-based Java applications.
To resolve this issue, you need to update the NVIDIA driver to the latest version, 378.66 or later. Follow the steps below to update the driver:
1. Go to the official NVIDIA website (geforce.com/drivers).
2. Select your graphics card model and operating system, then search for the latest driver (version 378.66 or later).
3. Run the downloaded driver installer and proceed with the installation.
4. After the installation is complete, restart your computer and run oCam or another CUDA-based application to check whether the issue has been resolved.
Updating the driver to version 378.66 or later will resolve the CUDA initialization crash issue and allow you to use oCam and other related applications normally. If the problem continues even after installing the latest driver, contact NVIDIA Support or check for the latest version of oCam.
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Differences in the Paid Version of oCam and How to Register the Serial Number
This software is free for non-commercial personal use, so businesses and users using it for commercial purposes must purchase a license.
If you use it in a company, organization, public institution, educational institution, or PC cafe, please purchase a license before use.
There is no difference in functionality between the free and paid versions. All ads shown in the free version are removed in the paid version.
Of course, non-commercial individual users may also purchase it if they want to remove the ads.
After purchase, the serial number will be sent to you by email, and you can use the software after registering it as shown below.
[How to Apply the Serial Number]
As shown above, click the menu and select Register, then enter your email address and serial number and click OK. Authentication will proceed as shown below.
After a short wait, the registration will be completed successfully.
[Registered oCam Licensed Version]
This is the registered screen with the ads removed.
For reference, the ads that opened when exiting the free version are also removed in the paid version.