My phone was 1.0.2 / unlocked, jailbroken etc and always worked perfect .. then I upgraded to 1.1.1 (I know, stupid) and it got bricked. so downgraded to 1.0.2 then unlocked again. the phone is working but the wifi always says "can't connect to network" and whenever the wifi is turned on the phone will randomly freeze up for extended periods, sometimes I have to reboot it manually (hard reset), sometimes it just comes back to life. I am not absolutely sure this is connected to the wifi issue but the problems seem to be related.

I tried searching the forum for this with no luck. are these known issues? any work around? I guess I'll just wait for the dev team virginizer and get this thing back to normal, but thought there might be a quick fix.