RIM :: 9900 Constantly Freezing For 10-30 Seconds?

I have a newly purchased 9900 from Rogers, and I've done all of the software updates that desktopmngr prompts me to install..The phone will periodically bring up the "clock" as if its waiting and calculating something, or just be unresponsive. It will also occur when the phone is in keylock mode, not the "clock" but just be unresponsive.I've installed no apps, made mods, or anything.And this occurs whether the battery is full or not (the phone does get quite a bit slower when the batt is almost dead as well).Is there a new OS available? I didn't see anything on the rogers site.