UltraMixer 2.4 wont start on Ubuntu 9.10

installed it with sun java 6,

i am able to run the intro screen then when i choose UltraMixer Professional Demo, nothing happens,

then when i ran it using sudo, it generated an error log

i also noticed how all the folder/files have lock icon on them,

[code:03777]#

A fatal error has been detected by the Java Runtime Environment:

SIGSEGV (0xb) at pc=0x00007f5ce3440c13, pid=4039, tid=140036907657488

JRE version: 6.0_15-b03

Java VM: Java HotSpot™ 64-Bit Server VM (14.1-b02 mixed mode linux-amd64 )

Problematic frame:

C [libpthread.so.0+0x7c13] pthread_join+0x23

If you would like to submit a bug report, please visit:

http://java.sun.com/webapps/bugreport/crash.jsp

The crash happened outside the Java Virtual Machine in native code.

See problematic frame for where to report the bug.

--------------- T H R E A D ---------------

Current thread (0x0000000040abd800): JavaThread “main” [_thread_in_native, id=4042, stack(0x00007f5ce212e000,0x00007f5ce222f000)]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x00000000000000d0

Registers:
RAX=0x0000000000000001, RBX=0x0000000000000000, RCX=0x00007f5cb14a629d, RDX=0x00007f5cb1475fc1
RSP=0x00007f5ce222d7d0, RBP=0x0000000000000000, RSI=0x0000000000000000, RDI=0x0000000000000000
R8 =0x00007f5cb14a593a, R9 =0x00000000000006aa, R10=0x00007f5ce222d5e0, R11=0x00007f5ce3440bf0
R12=0x00007f5cb9c08b18, R13=0x00007f5cb9bf3fa0, R14=0x00007f5ce222d900, R15=0x00007f5cb16c2880
RIP=0x00007f5ce3440c13, EFL=0x0000000000010202, CSGSFS=0x0000000000000033, ERR=0x0000000000000004
TRAPNO=0x000000000000000e

--------------- S Y S T E M ---------------

OS:squeeze/sid

uname:Linux 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 04:38:19 UTC 2010 x86_64
libc:glibc 2.10.1 NPTL 2.10.1
rlimit: STACK 8192k, CORE 0k, NPROC infinity, NOFILE 1024, AS infinity
load average:0.26 0.34 0.27

CPU:total 2 (2 cores per cpu, 1 threads per core) family 15 model 75 stepping 2, cmov, cx8, fxsr, mmx, sse, sse2, sse3, mmxext, 3dnow, 3dnowext

Memory: 4k page, physical 4060940k(2637852k free), swap 11687248k(11687248k free)

vm_info: Java HotSpot™ 64-Bit Server VM (14.1-b02) for linux-amd64 JRE (1.6.0_15-b03), built on Jul 2 2009 15:26:16 by “java_re” with gcc 3.2.2 (SuSE Linux)

time: Wed Apr 21 03:40:49 2010
elapsed time: 9 seconds
[/code:03777]