177 series drivers are "betas" which are specifically orientated towards gtx200 cards, not 8800gt's ? Maybe you should stick with drivers that properly support your 8800gt, like the 175.80 I currently have few problems with ---> and that includes appearing so far to have no real 2D/3D switching issues? Just for interest, I discovered that the Xpertvision 8800gt Sonic+ 1024Mb card also has seperate 2D/3D modes. In my opinion however, this card is even worse than yours since 2D speeds are 600/1500/500; with 3D speeds at 600/1500/900 ---> definitely not a proper 2D mode? Appears that 2D/3D switching in 8800gt 1024Mb cards essentially comes down to nothing more than changing Memory speeds ---> Personally I can't think of a reason why any manufacturer would bother introducing such a worthless 2D function ? Of course, maybe limiting the range of changes involved with 2D/3D switching was the only way to ensure seperate 2D/3D operations would work reliably ----> could be somehow related to my past recollection that seperate 2D/3D modes was not allowed with G92 based 8800gt's because such a capability was determined to be "unreliable in its operation" ? With your particular 2D/3D issues, maybe you should also consider modding your card's bios in order to disable 2D mode altogether ---> or effectively stop any switching by modding the bios to set 2D and 3D speeds at same levels?