Am I the only one who's facing this problem...inspite of updating my drivers?? Is there any option beyond disabling Open GL in SketchUp 8?? Why there's no such issue in version 7
We made changes to our rendering pipeline in SU7.1, but not in SU8. It would make sense that you might see differences on the same hardware/driver version between SU7-SU7.1 or between SU7-SU8. It is puzzling that you are seeing differences between SU7.1-SU8
Unfortunately, it sometimes happens that 'newer' driver versions aren't actually 'better'. Sometimes new bugs or implementation omissions creep in. You might want to try rolling your driver back a version to see if that helps.