When customizing the X configuration, if you select a resolution and then hit next and then decide to go back and modify this, you only see the selected resolution on the list of available resolutions to choose from
Confirmed as still a problem in beta2
verified ... thanks for the report!
verified in beta3
*** Bug 13690 has been marked as a duplicate of this bug. ***
This defect is considered MUST-FIX for Winston Beta-5
This defect has been re-classified as MUST-FIX for Winston Gold-release
going ahead and updating for beta5/pinstripe
Confirmed still happening in Pinstripe Beta-5. (I'm not sure what that last comment means, but it isn't fixed in this release.)
Verified as still present in RC1
Fixed.