I signed up just to share this piece of information for your: after three days of desperation trying to prevent ActiveSky from crashing randomly, but especially after switching windows or from and to Full Screen View, I discovered that by disabling the "Vertical Sync" feature of my (nvidia 6600 based) graphics card, I could not stop CTDs but also gain 10 fps. You find the Vertical Sync option in the Control Panel > Display, or by right-clicking the desktop and selecting "Properties". Then go to Settings - Advanced. The controls wills be in different places for different card manufacturers, check you manual if necessary. For nvidia cards, look for "Performance and Quality settings" - you can enable Anisotropic filtering, but you do disable Vertical Sync and save yourself a lot of trouble. Peace

Hi,Thanks for that!Hope this helps,Jimhttp://www.hifisim.comhttp://sales.hifisim.com/pub-download/asv6...development.jpg http://sales.hifisim.com/pub-download/asv6-banner-proud.jpg

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