Is OS 4.5 more stable than OS 4.7?
 

I have 2 BB's, a 8310 with OS 4.5 and a 9630 with OS 4.7. I notice sometimes with the 9630 that sometimes the HTTP connection gets stuck, and I have to pull the battery to clear it. The 8310 never had this problem. I'm running the same apps on each phone, and each OS recently had a clean install. I also swap the SIM cards between them and it still happens (ie: it's not a network problem, but a device problem)

...is OS 4.5 more stable? ...or could it be something else?

Thanks.