I've heard this also, and my experience suggest it's untrue. I've run 98 for years without reinstalling, and have experienced none of the slowness or proliferation of errors that the "experts" talk about. Removal of unused programs and files, regular visits to Windows update and a good registry cleaner are sufficient, at least in my case. **************************************************************************** *************************** I've been advised by several 'experts' to reinstall my operating system at regular intervals. This procedure is said to be the only practical way to clear up certain fatal faults which crop up. Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://freepctech.com/pcbuild.shtml