This was an issue I raised several times during the NIS 2010 beta cycle. The latest beta releases of SoftSkies Platinum and G-Force Platinum once again are triggering SONAR on Windows 7 Ultimate x64. As before, this happens when either g-force.scr or softskies.scr screensavers are started.
The good news is that the "SONAR hotfix" does allow me to exclude the files. Without the hotfix the files were repeatedly quarantined, even if I'd enabled the "exclude this file" option. Utlimately though, something in SONAR does need to be tweaked.