Great app Ray does everything I need in one small package, just got a query rather than a compaint - I just can't figure this one out! Can anyone explain why (using CCC 6.9) I can set Overdrive to 690 core, from the default 621 (keeping mem at the default 747) and using ATT OSD everything seems to switch ok and I can play Broken Sword fine (and GRAW etc all day long). Yet if I disable ATI Poller and then set ATT to do auto overclocking with a 3D profile of 690/747 I get major graphics corruption and lock-up as soon as the game starts! Surely it should be the same thing, or are things happening "behind the scenes" that I don't know about. Thanks guys.