On 26 Oct, 2004, at 8:11, deepthought wrote: Hi, 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. You didn't say what you were doing when the freeze occurs. Are you surfing, playing, or working when the situation arises? What peripherals do you have connected, what OS, how much RAM, etc. A little more information might lead to a more concise and applicable answer. Are there any NEW software, devices, connections, etc? Sometimes attaching a new device can wreak havoc with an operational system. New software can be incompatible, new RAM chips can be non-operative, and making multiple changes at the same time is usually a leading factor in system slowdowns. Address each potential factor as individual issues to investigate and narrow the range of possibilities. Eventually, you will find the culprit and remove/repair it to restore your system to proper functionality. Good luck with the hunt.