I've just been wondering with some new motherboards which uses DDR instead of SDRAM, I've been seeing some DDRs are 333 or 266 Mhz.Say, (because I've never used a DDR before) for example my m/board accepts and runs on a 266 DDRs., can it also go steady and stable with a 333s ? With SDRAM, I've tried 100 and the 133, I had no problem with it but what about DDRs ? Doe it means if the m/board accepts a 333s, when I'm upgrading I only have to purchase 333s...only ?? Helps needed because thinking of upgrading my PC to a 2.8 P4 with DDRs.Thanks.