Love any suggestions you have to this problem.

My laptop had Window Vista on previously (sorry). Something went wrong, I can't remember, and I tried to reinstall but couldn't, installed a replacement second hand HD, and installed Ubantu instead. It worked ok for a little while, before crashing. I ended up reloading Ubantu three times. It works for a while after (say 3-5 hrs of domestic web browsing), and then crashes.

When I turn it on now, it comes up with some options to restart in safe mode, run tests and so on. I can't get it to start normally. I'm not going to re-install again.

Below are screen shots of what happens when I follow some of these test options. These screen shots mean nothing to me. Any ideas? Surely I can fix this....

http://i1219.photobucket.com/albums/dd434/keithrhodes1/P1050109.jpg

http://i1219.photobucket.com/albums/dd434/keithrhodes1/P1050105.jpg

Thanks in advance for any suggestions

Keith