K750 - Memory Expansion - Doubts - please

[steelwin]

I have k750 , i want to expand the memory to 1 GB ,but the same phone is with my friend having 1 GB card .the phone gets slower and slower.and hangs. will this is a serious problem if i go for 1 GB . or tell me i have to go for 512 mb card. but iam preferring to go for 1 GB.will this affects my phone??

[sting]

iam using 1GB (90% used) with my K750i , i dont fell any diff after adding the MS Duo