Updated to v1.2.4 and I get the following system error messages

[bladerunner]

/public_html/register/system/config.php file needs to be set to read and execute modes (644 or 755) to keep it secured from editing!
/public_html/register/index.php file is writable. It is recommended to set read and execute modes (644 or 755) for this file to keep it secured and running properly!

I have checked the files and have set them both to 755.  I delete the messages from the message manager.  When I login again, the messages are back again.

[bladerunner]

I think I figured it out.  AbanteCart isn't happy if anyone can write to the file! Therefore, 644 or 755 would be wrong.  I went with 555.  Is that good?  I have yet to experience anymore problems.

[Basara]

You can disable files permissions check in the Admin > System > Settings > System Tab. Look for System Check setting