Video card or windows problem?

[chiriks]

I have Dell vostro 3450.
I heve problem when i start windows without power unit but with battery.
I have same trobble like lines in screen.

What is this problem? How i can resolve it?
Thanks

 

[nashdes001]

check for video drivers. Update them. If it still happen then the video card is damaged.

 

[chiriks]

This appears only in main log-in, i made one more user on windows, when i start it first, i never hed this problem only in main user.
I have instaled newest driver.
I think this problem showed when my classmates tahe my pc but there be password to start up but they take down me pw with some windows 7 bootable cd.

 

[chiriks]

I have integread video card intel graphics 3000.
I resolve my problem with combination Fn+F1
I change to Dublicate and then Disconnect projector.
And all goes fine, but i want to know is this a mechanical problem or just drivers. Because i have half year warranty left.

 

[nashdes001]

My suggestion

If its in warranty then RMA it