737 pic weather radar

hi guys,need some help.ive just converted to fsx and bought my copy of just flights 737 pic which is duel compatible with me but since ive installed it the wx radar is not working. i turn it on and goes to test mode and sticks there for the whole flight. other addons im using is radar contact 4,x graphics with latest patch and active sky advanced with beta patch. all worked fine in fs2004.the other thing is that when using fsx default weather online it seems to be fine so seems like weather addons are causing this.anyone had the same probs or got any advise? i would appreciate it chris