[iPhone 4, iOS 4.0] Springboard Crashes

I just finished jailbreaking my iPhone 4 with jailbreakme.com absolutely awesome by the way) and the first thing I installed was Winterboard. However I am getting a lot of Springboard crashes where I have to restart the Springboard. Anyone else experiencing this? I thought it only happened on my 3G because there wasn't enough RAM available for it. However this is a little disconcerting.

Also, any else having problems refreshing BigBoss and ModMyI sources? Whenever I refresh it says it was having problems and whenever I trey to install anything through Cydia from those sources it says Host Unreachable.

Modmyi is hosting jailbreakme so their servers are slower than normal.

I don't use winterboard so cannot comment on your springboard problems.