Just folders, or apps as well? Sometimes I've had to click twice on a folder to get it open, but never reboot. Maybe you have a process that's sucking all resources? Maybe install TaskManager and have a look.
Doesn't sound so much like a resources issue then. Unless this gets better or someone comes up with a solution for you, I'd probably talk to Verizon about it.
It has happened to me once and never since..you probably have an application conflicting with it somehow. If nothing works just look forward to the update coming in January...but like I said I am sure there is some troubleshooting method to fix it up until then.
thank god for technical support at vzw though. I just called them and they seemed really sympathetic about it.
what they suggested is to put your phone on safe mode for awhile (even if it is an inconvenience) so that you'll be able to distinguish if the problem is coming from the phone (in which case they will exchange it for you) or the apps that you have downloaded. If you have no problem during the safe mode, then it's obviously being caused by one of the apps.
hope this helps.
ps. i hate not being able to reproduce the problem when needed. ARGH! :]