Screen Problems horizontal lines

Hi,
since I use Windows 7 X64 on my T500 2241, I have problems with many horizontal small lines on the display. The same I have on an external monitor. With Win XP 32 bit I never had such problems on this computer.
May this problem is related to the video driver. I'm using: Intel Mobile 4 Series express chipset driver version 8.15.10.2302. I have made the latest bios update for my computer.
Nothing helps. Is there an better idea?
Many thanks
Michael
Solved!
Go to Solution.

Hi i've found following:
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-74739&selectarea=SUPPORT&tempsel...
it works
Thanks
Best regards
Michael

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Dear Customer,
Welcome and Thank you for posting your query on HP Support Forum
It looks like you are having issues with the Display of your Notebook. We will surely assist you with this issue
1. Please check if the Display/Screen of your Notebook shows lines even in BIOS or not
Note: Power ON the Notebook and keep tapping the F10 Key to access the BIOS
2. Please tilt the Screen/Display of the Notebook slowly towards back and the front side, check and verify if the lines are seen at all the angles of the display
3. Please connect an external desktop monitor to your Notebook and check if the lines are shown even on the external monitor
Hope this helps, for any further queries reply to the post and feel free to join us again
**Click the White Thumbs Up Button on left to say Thanks**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.
Thank You,
K N R K
I work on behalf of HP

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Message was edited by: ccolaco

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This guys is having EXACTLY the same problem that I detected:
https://discussions.apple.com/message/10624006#10624006
And his explanation is quite clear
(copied from this post)
Description: Every other horizontal pixel row appears brighter than the alternate, creating a scan-line style effect that also contributes to the washing out of the display. In seemingly random "luck of the draw" machines, lines can either be highly visible or not be present at all.
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Screen Problems horizontal lines

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