Viewfinder shows only streaks

if the pictures are like that as well, chances are your CCD sensor is on the way out. if only on the viewfinder (so pictures are OK) it may well be the display of the viewfinder that is also known to give problems although much less... however, if the viewfinder is the problem you should be OK to use the cam. in case you did not replace the CCD, i would be careful spending any money. i am now trying to get the 3rd CCD in my cam... they are really a problem.... I have 2 of these and they seem to keep on failing on the CCD's. pity, since i really love this camera...
ton