So I just reinstalled Nightly (x64) on my tower today. It had today's build (2011-10-07), but updater.exe ran, and now it's running Build 20111005030932. Before reinstalling, Nightly would not update from 9 to 10, and I had to find the download link since the one on the Nightly page wasn't version 10 (that's fixed now). And when I finally got it to 10, it wasn't updating again either, hence why I reinstalled. My laptop is having no issues with the 64-bit version of Nightly, updating regularly.<br>