I need a manuel for aiptek 2.4 lcd portable media player.

Maybe it needs to have it re registered or the site's down for a while.

Aiptek makes several models with those specs. Please choose the appropriate one from their web site at
http://www.aiptek.com/Support/Manual/

http://www.retrevo.com/s/Aiptek-AX4-MP3-Players-review-manual/id/23156ci963/t/1-2/
you can download manual at link above

Hi, please use the link
http://www.arcsoft.com/en-us/download.asp?id=DOWNLOAD http://download.cnet.com/ArcSoft-MediaConverter/3000-2194_4-10639983.html http://www.downloadatoz.com/multimedia-design_directory/arcsoft-mediaconverter-2-5-win-download/ http://arcsoft-mediaconverter.software.informer.com/2.5/
you can download the software from the above links

You can download the manual from the manufacturer's web site at
http://www.goaiptek.com/manuals/manual-ahd.pdf

Its better that you purchase a better lens cleaner which keeps our old lens alive.

I have same problem with me, but now when i used the lens cleaner, the problem solved, now i can easily see DVDs on my portable player

SD cards have a slide switch along one edge. The position farthest from the contacts locks the card, protecting it from writes. The position nearest the contacts unlocks the card. If the switch is already in the proper position, slide it fully the other way and then back again.

what version of Player use the 11 and make sure the music is not right protected from the optins in media player chack for required plugins as well

HDTV: grab the "HD out" cables (That's the Blue-orange-green cable) and plug them into the (front may have a "video 2/3 section")  the video 2 (video one probably has your game station, or DVD player if not, plug it into the "video 1" section) and the screen on the camera (may or may not, mine does, my friend's does) turn off, that's OK. Make sure that before you plug it in you've selected AV OUT, not IN. Change the input mode on the tv to match the plug in area's name. Go to menu (you may have to navigate from the tv screen) then "my works" and you're ready to go :) 
Standard TV: Grab the Standard-def cable (red-yellow-white) cable and plug it into one of the available Red-Yellow-White ports on the TV, then the rest will be the same as for an HDTV.
hope this answer helped, sincerely: (youtube user) Animation508

I called the phone number listed for Aiptek support ...they helped me work through the problem