On Vista IE7, when disable browser's native XMLHTTP, color picker in v6.1 no longer runs. However old v6.0 doesn't get impact from this option.  Customer's PCs have to have this option disabled. They are asking to bring back the old 6.0 color picker into v6.1 to serve as an option for clients who do not have Ajax ability by default.

Communicating with support to see if bring back is feasible and timeline