I can help you with your problem by giving you a direct link to the Manuals download page for the Compaq Evo N610C, sachsr.
This is HP Support, and the Manuals page for the Compaq Evo N610C Notebook PC,http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?contentType=SupportManual&lang=en&cc=us&docIndexId=64179&taskId=101&prodTypeId=321957&prodSeriesId=316664
If you click on the first file listed under the General Reference heading,
Compaq Evo N610c Series Getting Started,
,you will have a User Manual.
This manual is in PDF file form. The computer you are using now has Adobe Reader on it, which utilizes PDF files.
After you click on the above link, it may take up to 30 seconds before the first page of the manual pops up. (Only took approximately 12 seconds for me just now)
It may also take additional time for the file to fully download.
If you scroll down the page to the - Service and maintenance information - heading, and click on the last file listed you will have a Service Manual.
[Maintenance and Service Guide: Compaq Evo Notebook N610c Series, Compaq Evo Notebook N610c Series, and Compaq Evo Notebook N600c Series. (30 Jul 2007) ]
For additional questions or clarification to what I have stated, please post in a Comment.