On 26 Oct, 2004, at 8:11, deepthought wrote: I was wondering whether anyone has had any problems after installing their Encore ST/G4 accelerator. I've had it for about 1 1/2 to 2 years and it's been working fine until this week. It seems my G4 AGP is getting unstable to the point where it will freeze after about 5-10 minutes. One question to ask is whether you have installed some program lately that may be affecting the performance of your system. I suggest that you review your latest installations for compatibility and system requirements. Another question is whether you have performed the normal maintenance processes during the time that you have had the G4 accelerator installed and running. Have you used a program like Onyx or Cocktail to keep your system maintenances up to date? You should try both of these remedies before doing anything more extensive in your investigation of the slow-down you are experiencing. You can also use Disk Utilities in the Mac OS as an alternative to a third party program to repair permissions or examine your drive for possible problems.