Thanks for the feedback UA Fan.
The search option that was previously labeled as IB Beta Search was just implemented as the standard search on the forums. This has been done in an effort to improve the overall performance of the site. As you've already noticed, there might be a few bugs initially, but if it results in a much speedier site the tradeoff will probably be worthwhile.
The tech team is still working on adding in all of the features the original search provided ... I believe the expectation is that this will be completed, or at least nearly so, in about a week.
Regarding the problem you noted UA Fan, I was unable to duplicate it. Are you still seeing this happen and, if so, what type of search are you doing?