[LAU] SO-666 crashes Ardour

I'm trying to use the drone synth plugin SO-666 with Ardour I installed it from the KXStudio repo but when I load one into Ardour the app crashes - as in: completely shuts down I also tried Qtractor to see if this was any more forgiving but it did the same thing I also tried the other two plugs SO-KL5 & SO-404 in both applications - same thing again here is the error message from my syslog: Mar 10 08:36:16 kim-studio kernel: ardour-2.8.11[4577]: segfault at 10 ip ad650dc1 sp accd4b10 error 4 in libsosynth.so[ad650000+3000] anyone else experience this? my config is below: -- *my Linux audio perf config:* Dell Studio 1537 Core2 Duo @2.0GHz | 3G-RAM Ubuntu 10.10 kernel 2.6.37-1.dmz.2-liquorix-686 #1 ZEN SMP PREEMPT jackd version jackdmp 1.9.6 Ardour 2.8.11 Pd version 0.42.5-extended USB iMic audio interface Korg nanoKontrol M-Audio kbd Axiom25 cpufreq-set - both cpu's are set to 2.0GHz and performance