We released another Inquisit 2.x update to the web on Oct 2nd. The update has a number of fixes and features, including:

• Thorough bug scrub of the validresponse and correctresponse commands, so if you've run into any issues with these commands, you should try this update.
• More flexible options for serial and parallel port signals. 
• Added ability to branch based on single-trial performance measures (latency, correct, error, and inwindow).

For a complete list of features and fixes, see the release notes.