
Oh Chaitanya, I am so sorry. I did not know you were not being responded to, I have been away for about a week, and am just now getting back.
Without going through this entire thread, can you please refresh my memory, did we have you uninstall and reinstall your keyboard? If not, go to your control panel, choose Performance and Maintenance, click on System, then on the Hardware tab choose Device Manager. Look under Human Interface Devices to see if you have a keyboard listed there. If you do, click on it and delete it. Then restart your computer. The computer will recognize the keyboard, and reinstall it.
If not post back here and we will figure out a way to get the drivers reinstalled.
Looking forward to your post.
TTFN
LGW