Software Virtualization Solution 2.1 HotFix 1 has been posted to the Altiris Knowledgebase. This HotFix includes fixes for three blue screens reported to Microsoft via the Online Crash Analysis system. All SVS customers should use this update.
If you ever have a crash in Windows -- with any product, not just Altiris/Symantec -- please click "Yes" when asked if you want to send the crash info to Microsoft! There is no quicker way to get defect details to a software vendor so they can fix the problem, often before other customers ever see it.
Also included in the HotFix is a registry cache enhancement that preserves correct operation of SVS when used with Scense on terminal servers.