Chat log quota had been maxed many a time using version 6 and no problems/lags occured, just the usual pop up asking me to save it and start a new one. No idea what actual size the chat logs were at the time whilst using 7, but slowing down had always been occuring as soon as the first ever beta came out of msn 7.
PC Spec here; (Aint got nowt to do with that like.
)
1.67Ghz
512DDR
80Gb HDD, with 50% space left
Please post back any feedback from MS. Will be interesting to read.