A new version of the miner is available; I've updated the download link on the first post, or you can get it here:

    guiminer-20110823.exe (self-extracting archive)

Changes:

- Update poclbm (OpenCL miner) to the latest version. This changes the format of a backup pool. In the "extra flags" you just enter your backup (or backups) like this: Kiv.GPU:mypass@api2.bitcoin.cz:8332
- Update Phoenix to the latest version. See their thread for details on changes.
- Remove ufasoft miner from the GUIMiner bundle. It's still supported, but you'll have to download it separately. I apologize for the inconvenience to ufasoft miner users, but I decided to do this since only a few percent of users were using ufasoft and due to recurring false positive issues from antivirus programs.
- Added "duplicate miner" option when right clicking on a miner tab. This is to make it easier to clone miners to multiple GPUs.
- Limited maximum scrollback in the console window to 5000 lines. On machines with low RAM, this will prevent running out of memory after a long period of continuous operation.
- Add more pools to the server list, though balance update doesn't work for all of them. I'm looking at ways to handle the large number of pools that are popping up better.
- Fix Linux bug where the window could not be restored after minimizing.