hmmm.. the guys have suggested a fair bit and you've tried a fair bit. 'fraid i'd suspect the video card at this point. I used to have awful problems in different PC's over the years with graphics cards which is one reason why i only use onboard video nowadays. But any road up i would run 'dxdiag' - the DirectX checking program and see if anything flags up there, reinstall the video drivers and try previewing in Shrink again.. or try the obvious - ie look for updated video drivers, maybe even reset the graphics card and preview in Shrink again....
Ok, ill try that stuff.Thanks bud. This is prolly going to sound stupid, but how do I go about reseting my graphics card? thanx,