Hello,

I'm new to Linux and I've recently decided to start learning processing. I can start processing and run simple commands. I'm having problems however, when using Java methods.

When I run processing the terminal displays the following assertion error:

Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb1749767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb17498b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0xb178e1bd]
#3 /home/peter/processing-0148/java/lib/i386/xawt/libmawt.so [0xb187bdce]
#4 /home/peter/processing-0148/java/lib/i386/xawt/libmawt.so [0xb1865d77]
#5 /home/peter/processing-0148/java/lib/i386/xawt/libmawt.so [0xb1865ef3]
#6 /home/peter/processing-0148/java/lib/i386/xawt/libmawt.so(Java_sun_awt_X11Graphi
csEnvironment_initDisplay+0x26) [0xb1866136]
#7 [0xb29ebbfa]
#8 [0xb29e5b3b]
#9 [0xb29e5b3b]
#10 [0xb29e3219]
#11 /home/peter/processing-0148/java/lib/i386/client/libjvm.so [0xb77802bc]
#12 /home/peter/processing-0148/java/lib/i386/client/libjvm.so [0xb7894ed8]
#13 /home/peter/processing-0148/java/lib/i386/client/libjvm.so [0xb77800ef]
#14 /home/peter/processing-0148/java/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x32
d) [0xb77ddb9d]
#15 /home/peter/processing-0148/java/lib/i386/libjava.so(Java_java_security_AccessCo
ntroller_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb757730d]
#16 [0xb29eb4ab]
#17 [0xb29e5a64]
#18 [0xb29e3219]
#19 /home/peter/processing-0148/java/lib/i386/client/libjvm.so [0xb77802bc]
Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb1749767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb174981e]
#2 /usr/lib/libX11.so.6 [0xb178d518]
#3 /usr/lib/libX11.so.6(XGetVisualInfo+0x26) [0xb17840a6]
#4 /home/peter/processing-0148/java/lib/i386/xawt/libmawt.so [0xb18650b9]
#5 /home/peter/processing-0148/java/lib/i386/xawt/libmawt.so [0xb1865303]
#6 /home/peter/processing-0148/java/lib/i386/xawt/libmawt.so [0xb1865fa1]
#7 /home/peter/processing-0148/java/lib/i386/xawt/libmawt.so(Java_sun_awt_X11Graphi
csEnvironment_initDisplay+0x26) [0xb1866136]
#8 [0xb29ebbfa]
#9 [0xb29e5b3b]
#10 [0xb29e5b3b]
#11 [0xb29e3219]
#12 /home/peter/processing-0148/java/lib/i386/client/libjvm.so [0xb77802bc]
#13 /home/peter/processing-0148/java/lib/i386/client/libjvm.so [0xb7894ed8]
#14 /home/peter/processing-0148/java/lib/i386/client/libjvm.so [0xb77800ef]
#15 /home/peter/processing-0148/java/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x32
d) [0xb77ddb9d]
#16 /home/peter/processing-0148/java/lib/i386/libjava.so(Java_java_security_AccessCo
ntroller_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb757730d]
#17 [0xb29eb4ab]
#18 [0xb29e5a64]
#19 [0xb29e3219]
/usr/share/themes/Human/gtk-2.0/gtkrc:43: error: lexical error or unexpected token, expected valid token


What can I do do fix this problem? As I said, I'm new to linux so maybe the fix it might be really obvious.
Thank you in advance