hi dannyx2010
The K3760 (Options) USB modem does have some problems with the 64 bit version of Win7.
As far as the testers know, non-ASCII characterss are not supported in contacts and no 2G, so will only connect in 3G.
Can you see the device in the Modems list?
9.44.17702 is the latest software avaialable.
Did you get a CD with the usb?
If so, uninstall the software and use the cd to load it, then plug in the usb after the end of install reboot.
Give it another go and post back what happens, please.
If it's the same, then the "no device" message will need to be investigated. Please add the make and model of the laptop in the post.
Many thanks
Albert
eForum team