I have been using this phone since Jan'02, 2006. Recently, I am not able to view Word documents, Excel spread sheets, PDF documents in my memory card.

But I am able to view pictures, music etc.. which are stored in my memory card.

Is there any settings that needs to be changed so that I can view Word files, Excel files etc..?

Thanks,

Have you, perhaps, had QuickOffice installed and now it has been uninstalled?

If so, you can download the QuickOffice viewers for the N90 from nokia.com:
http://www.europe.nokia.com/nokia/0,,76657,00.html

Thanks a bunch your suggestion worked.

I had changed my memory card from 128 MB to 1 GB. Probably, due to this reason my QuickOffice installation is not available in my new memory card.

One more thing which may not be related to the software:

I have a Leather Case in whic I keep my N90 handset all the time. Whenever I take out this phone from this Leather Case, the camera automatically activated. Is there a way to disable this automatic Camera activation?