Hello. I have a Dell Studio 1555 and recently I am experiencing some problems with it.

When I start the notebook on battery (it was on power cable when it was shut down) it boots up the system and after aprox. 1 minute it freezes and I have to shut it down from the power button and restart. After that it runs smoothly with no problems. First I thought it's the OS but I am using Windows 7 x86 and Ubuntu, and the symptoms are the same on both.

If anyone knows what the problem is or has experienced the same problem please answer me.

Thanks