Hi there,

Let me firstly say that this forum seems quite helpful and informative - I look forward to helping with computer problems that people have

Ok here is my problem...

I dis-assembled a laptop in order to fix a broken power connector socket. That being fixed I re-assembled the laptop and proceeded to switch it on. The laptop would not boot - not even to bios it just came up after a very short cd-rom spin with the image below:



Thin vertical blue lines on the screen.

I have since dis-assembled and re-assembled the laptop many times over and have not found any visable problems yet the same blue vertical lines appear when I try to boot.

If I remove the ram modules the computer beeps as to say that the ram is not installed so the bios must be working in some shape or form... In contrast when I remove the hard drive there are no beep sounds and the blue lines appear so it can't be the hard drive (hard drive has been independently tested in a portable enclosure). Since there is at least some sort of graphical presence I presume the graphics card is working..

Anyway any ideas where to start looking would be greatly appreciated. The details for the computer are below:

Toshiba Satellite P20
3.0ghz Pentium
512mb Ram
17inch Widescreen
Separate graphics (not integrated)
80gb hard drive

Thanking you in advance!

Regards
Mathias