I have just purchased a Radeon 9600 after using Geforce 5600FX. All the existing Nvidia drivers have been removed. When I installed the ATI card and used the latest Catalyst 3.8 drivers, all seemed O.K until I changed my screen resolution to 1152x864 and set the Monitor refresh rate to 75Hz. It was then that I noticed that any text that is on the screen appears to shimmer. I have since played with the refresh rate setting and it stills shimmers. If I put it back to 1024x768 resoultion the text stops shimmering. I have never experienced this with the FX card. My setup is an Athlon XP2400,1Gig PC2700 DDR, 120Gig Maxtor HDD, Epox EP8RDA+ Mobo - With Latest BIOS,Win 2K (SP4) and my screen is an LG FLatron 775FT 17" monitor. Does anyone have any ideas as to what I could do? Thanks in Advance.