More R-10 Thanks Noggin! It's R-10 Speakers, Model No: S-0152B1 (Input:9V 700 mA. :-)

Found them at last - they do exist! http://www.logitech.com/index.cfm/products/details/US/EN,CRID=2173,CONTENTID=9817 try this next page (near the bottom): http://logitech-en-amr.custhelp.com/cgi-bin/logitech_en_amr.cfg/php/enduser/std_adp.php?p_faqid=7&p_created=1083624908&p_sid=NbWLjZvi&p_accessibility=0&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9NzgmcF9wcm9kcz04NDQsMTcmcF9jYXRzPSZwX3B2PTIuMTcmcF9jdj0mcF9zZWFyY2hfdHlwZT1hbnN3ZXJzLnNlYXJjaF9ubCZwX3BhZ2U9MQ**&p_li=&p_topview=1 It appears that there is no associated software specifically for these speakers, they are a simple jack connection type - if they work on your walkman, but not on your pc then: the jack is either plugged into the wrong hole,or the volume is down in windows or in the application you are trying to hear or both (or on any special non-windows soundcard software).(ask again if you are unsure how to check this). Make sure your soundcard works by plugging in some headphones or speakers you know work. the only other thing i can think of worth checking is if you have used the headphone jack in the front of the speakers - this will cut the sound to the speakers by way of a small spring contact - sometimes this can get stuck open, but obviously not if they work on your walkman. maybe a bit of dirt got in there - just plug another jack in a couple of times to check. Also check if the volume control works fine when plugged in your walkman. Hope this gets you sounds :)

I had same prob went into control panel go to sounds and devices and make sure your speaker volume is on! I felt so relieved and dumb hope that helps!!!