Hi David, Thanks for your reply and explanation about the Mk II cpu. The chip in question is a Mk II, so I guess no stink or fuss will be raised. Although, I still think their listing it as a 300 mhz chip is skirting legality VERY closely, and is at least deceptive advertising. I see what you mean about certain games not doing as well with this cpu. I just installed Sonic the Hedgehog yesterday and it's response is very disappointing. Oh well, I'll just register on-line and pester Sega's support staff for a fix. Once again, thanks for setting me straight on this matter. Yours, Mike Yates ___________________________________________________________________ You don't need to buy Internet access to use free Internet e-mail. Get completely free e-mail from Juno at http://www.juno.com/getjuno.html or call Juno at (800) 654-JUNO [654-5866] Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://nospin.com/pc/pcbuild.html