I'm having problems with search today as well - trying "website discount" in the UA forum using the basic drop-down at the forum level. 2 scenarios:
1. times out
2. redirects me to the advanced search page (even though I didn't select advanced search) and then tells me I've already done a search in the last 30 seconds. After waiting a full minute and a half, try again and the advanced screen just reloads again.