If you get a failure, post the contents of the update.log file here.
Still doesn't work. Here's the update log:
MSG [5924] 2012/01/07 14:26:36: Extended definition: current version is 0 and latest is 11359
MSG [2592] 2012/01/07 14:26:37: Extended definition: current version is 0 and latest is 11359
MSG [2592] 2012/01/07 14:26:37: Extended definition: current version is 0 and latest is 11359
MSG [2592] 2012/01/07 14:30:42: Definition: checksum mismatch for : [C:\ProgramData\Lavasoft\Ad-Aware\Update\CSC39-EN-0-11356-F.sbr.sgn]
MSG [5924] 2012/01/07 14:30:46: Update finished










