Thank you for your question. I am Shefin and I look forward to helping you with your issue today.
The issue is because of the sensitivity of your touchpad. If you disable the touchpad and uses and external mouse, it will work fine.
A good resolution for this issue is to download and install Touchfreeze software. Please go to the link below, click Downloads section. Download and install the software. Please do not purchase anything. http://code.google.com/p/touchfreeze/
After installing the software, click Start button, select All programs and then select Touchfreeze from the list of the programs. By selecting the program, you are enabling it. Nothing will open on your screen, but it will be enabled. Then, try typing anything.
If it is not enabled, select it again and try typing anything.
If the issue persists, please let me know, so that I can assist you further.
Should you feel the need to provide a negative rating of Bad or Poor Service, please wait and let me know what I can do to clarify or more thoroughly answer your question. You are rating me personally, not this site or your product and negative rating will not initiate a refund.
I request you click the EXCELLENT smiley face once you have all the information you need. My goal is to provide you with excellent service – if you feel you have gotten anything less, please reply back, I am happy to address follow-up questions. Thank you for your business!