Width Problem on Postbit

[PhoneiX]

Hello,
There is a small problem which I have messed with about an hour.

As you see, postbit is narrower then "controls above postbit" and "controls below postbit". How can i deal with this?

[Princeton]

check postbit_wrapper, $spacer_open, $spacer_close,

[PhoneiX]

Thank you. Now it's ok.