Try to set a system restore point before installing a device DriverSiS, Problems can arise when your hardware device is too old or not supported any longer UniVGA5, OSSupport:Windows Vista Size:14 Driver, This will help if you installed a wrong DriverSiS, 7 MB SiS671FX , SiS671 , SiSM671 , SiSM671MX , SiS672FX , SiS672 , SiSM672MX , SiSM672 ,Target SegmentMainstreamDual-Core SupportYesProcessor SupportIntel Core 2 Duo/Pentium D/Pentium 4System BusFSB 1066 / FSB 800 / FSB 533SiS HyperStreamingYesHyper-threading SupportYesPackage847 TEBGAMemoryMemory ChannelSingle-ChannelMemory TypeDDR2-667 / DDR2-533 / DDR2-400Max Memory4GBError CorrectionNon-ECCExternal GraphicsInterfacePCI Express x16Integrated GraphicsCore GPUMirage™ 3 GraphicsMax Video Memory256MBDirextX SupportDirectX 9 UniVGA5, 0Multi-Threaded I/O LinkTypeMuTIOL® 1GBandwidth1 GB/sIt is highly recommended to always use the most recent Driver version available Driver, Do not forget to check with our site as often as possible in order to stay updated on the latest drivers, software and games SiS,