First, I need to know the operating system of your computer. Also, if you have installed the driver for the device. (http://usglobalsat.com/p-140-bc-337.aspx#images/product/large/140.jpg
). Download the driver file and make sure to extract first. Afterwards, install the driver.
Now, bring your computer outside where there is clear access to the sky and there are no tall buildings or trees around that area. Click on the GPSInfo program, select the correct com port, and choose the appropriate baud rate. Press 'Start GPS'. You should see some scrolling data below. Moreover, check if the red light is blinking.
For more info, you can refer to the user guide: (http://www.usglobalsat.com/store/download/140/bc-337_userguide.pdf
We do have a telephone number provided on our website (http://usglobalsat.com/t-support.aspx
M-F 8:30am ~ 5pm PSTEmail: email@example.comToll Free: 888.323.8720
You can contact us either by email or phone and one of our Tech Support will assist you.
Let me know how it goes.