Just an update to this thread for anyone reading this now that flash
cards over 4 GB are very common... I dont know if vista's readyboost has
been updated in line with Win7 but for Win 7 the readyboost cache can be
upto 256Gb, hence if your flash card is more than 4Gb you are recomended
to format it as NTFS. If you format it as FAT32 readyboost will only
ever suggest a 4Gb cache as the cache is a single file, and FAT32 limits
files to 4Gb in size. I changed my 8gb card from Fat32 to NTFS hence
increasing my readyboost cache from 4gb to 8gb on a duo core PC with 4Gb
of ram and the further improvement is very noticeable.


--
RobinGB