Does this happen to anyone else?

If I use the browser the PS3 ends up crashing and needs me to hold the power button for a long time before it goes off.

I also downloaded something from the store earlier and it also locked up on me. It also goes very slow.

I can usually play games online though although sometimes in KZ3 it says "Lost connection with Game Master" and take a long time sometimes to jump into games.

My connection is about 7MB/s or something like that right now.

Happened to my phat 80gb almost all day on Monday.  Didn't have any problem at all, yesterday.

So maybe it is a PSN issue?

I hope so, I just bought the thing a month ago.

I don't even think it was a PSN issue.  I think it was a web browser issue.  I downloaded lots of stuff and played LBP 2 without a problem, yesterday.  Hopefully the problem has passed.

*edit* I had that same problem with KZ3, the first day I got it.  I haven't played it since the latest update.  I hope that problem is fixed, too!

It happens to me a lot in the web browser and in Black Ops

this has been happening since 2006, its a directed memory issue, not enough PS3 memory is being divereted to the browser when it is up. 

Its normal dont worry.

I've had it crash most of the times I've used it, it might be a PSN issue though because I couldn't log in today for a while.