v4.1.11 - Unable to set default style

[Reni]

Warning: I am brand new to this.

I have searched the forums and the manual I have not come across anything that seems up-to-date with my version.

I am having trouble setting my newly uploaded styles as defaults. Sometimes it will work and other times it does the vBulletin default style.

Here is what I have tried:

1) setting each style in order
2) deleting the default style - won't allow
3) searching through the settings for an answer and no luck

Thank you in advance for your assistance!

-Reni