Hi, Now I can get both demos working, but using 68000 and higher accuracy, which wasn't necessary under uae-0.8.22. I did a direct comparison with uae-0.8.22: Whereas on uae it only required about 50% to 60% processing power to work perfectly smoothly, with the minimum to get it to work under e-uae-0.8.27-RC2, it doesn't quite pull it off with 100% processing power in most places. On 'Technological Death' demo. Using Sprite Collisions: 'Sprites & Playfields' only, then under uae-0.8.22 the red demon head shrinks fine. Under e-uae it gets green blobs. Similarly happens under different software. Don't if uae was really doing the full emulation or e-uae is miss doing it... Also, don't know if mentioned previously but there seems to be an issue with swapping the disk. try swapping, pciking new disk, then resetting, and occasionally the previous disk appears when I reset. Seems to happen in succession or not at all intermittently. Thanks, Lee -S- ___________________________________________________________ Moving house? Beach bar in Thailand? New Wardrobe? Win £10k with Yahoo! Mail to make your dream a reality. Get Yahoo! Mail www.yahoo.co.uk/10k