[jitsi-users] Jitsi going online/offline in a matter of 10-20 seconds

Just installed Jitsi in a laptop with Core i5 2.5 GHz CPU, 4 GB RAM and Win7 32bit. Jitsi is using about 168 MB of RAM and there is about 1 GB free.

1. It noticeably freezes when opening account settings and continuously going on and off line. It stays online for about 10-20 seconds and offline for the next 5-10 seconds and so on. Previously I was using Jive Software's Spark and it stayed online at all times.

The back end for this is Jive Software's Openfire server at another office. I was using it with Kopete, Psi, Pidgin and Miranda and never had this issue.

2. There was a user with pending authorization in the roster and I clicked to send them an authorization request.
The authorization dialogue froze and now Jitsi is non-responsive.

Does anyone have any suggestions on how to fix those issues?