^^^ thax for the reply.That seems like a very good idea.Come to think of it now,I have never thought of disabling the wifi device on the system before updating the driver.

Did this work for you?  Did disabling the wireless allow you to install it without issues?  I was given this thread as the solution to the same issue that I am having installing the driver on my wife's E1405.  I have never, ever had such an issue with upgrading the driver on any of wireless cards, so this seems really unusual.  If it did work, I suppose it would indicate that the person who wrote the code did not include packet to disable and uninstall first like most developers do now.  That would be more odd to me than anything, but I guess not impossible.

Surprisingly enough I was keeping a watch on this issue and what I would do is generally right click the Dell Wireless utility and then disable the card.Then I tried to install the drivers.and didnt encounter any problems so far.