I have Casio LK-300Tv KB. Get new notebook (previous with Win XP died). Attempt to install driver from CASIO website was unsuccseful. mge read : You have to use 64 bit driver. Send e-mail to tech support. Week ago .. No reply. Contacted tech support (Canadian 800 number didnt respond : Said can not be reached from my (Ontario) area). Contacted US number and then after 4 different customer reps transfer get to their tech support. They said what Win7 64 is not supported and to her best knowledge will not be. I asked what exactly I suppose to do? Answer : Instal WIN XP 32 bit.... I couldnt believe what I heard .....So be very careful while choosing CASIO products .. Seems that their tech suuport is not that very Customer friendly.. I wonder if there is work around this problem though ? ON one of the forums tech geeks said that I can try to download Win 7 WDK and use dpinst64.exe but others said that this would not work as the driver data itself have to be changed too by the manufacurer..(Oh Caio...I didnt expect that such a big name manufacturer could be so lousy with thier product support) .Thank you guys in advance for any support ...if any..