Cant edit my "Widgets" - on a moved installation

Ok, so here the "brain teaser" for the day.

1)I moved a site from one site to another. (Actually only the domain extension that changed from .co.za to .com)
2)I manually edited the MSQL file to change all the urls from .co.za to .com and imported in the new site.
3)I copied all files over through FTP.

Site works and all urls direct to the correct site.

PROBLEM: It don't allow me to make any changes on my theme "widgets". It shows it saved it, but when I refresh the page it just load the previous detail. Changed the theme and still doing the same.Everything else works 100%, except for this issue.

Any ideas on this?