Short for
check your settings, CYS is technical
support shorthand used to note that the user requesting support was advised to
check their settings in troubleshooting their problem. For example, if a user
calls tech support claiming he can't check his
e-mail, the technical support
personnel taking the call will have him CYS looking for incorrect settings
that will fix the error.
See also "Text
Messaging Abbreviations" in the
Quick Reference
section of Webopedia for
definitions to hundreds of frequently used chat abbreviations.