Started folding a few weeks ago when I updated the drivers for my ATi 4870 and a quick launch appeared on my desktop and I thought it's now oe never. Anyway cut a long story short I've changed my GPU to a Palit Geforce 260 Sonic 216SP. I uninstall the system tray I was using and installed - Windows XP/2003/Vista GPU System tray client with special viewer for NVIDIA GPU's (installer msi) 6.23 When I attempted to run I get them following message - Folging@home has run into a serious error running the core, and will shutdown What Have I done wrong? I installed the latest drivers for the GPU Thank you for your help in advance Richard