A few notes:
1. In some versions/revisions of Chrome, the Script Shield indeed isn't working. The new version (7.0.1451) covers a slightly broader set than the previous one, but we're aware of the fact that some versions are still not supported. Unfortunately, the way Script Shield works makes it quite difficult to make it functional across all browsers and their versions. That said, we're trying to cover as many versions as possible, and the respective changes don't usually have to wait till the next program update but can actually be pushed out by means of virus definition updates.
2. We have seen some cases where the SafeZone browser was crashing. This was because of some corruption of its internal data. What usually works is to reset the SafeZone contents (Additional Protection -> SafeZone -> Settings -> Reset SafeZone).
3. SiteCorrect should work if the following two conditions are met: 1) the avast plugin (usually still referred to as the "WebRep" plugin) is installed in the browser, b) SiteCorrect is enabled in avast's Additional Protection -> Browser Protection -> Settings -> SiteCorrect.
4. SiteCorrect's database is extensive but far from complete. We will be improving it moving forward.
5. If you encounter any kind of BSOD, it would be really appreciated to submit the corresponding dump files. The folks over here can advice you on how to do that.
Thanks
Vlk